for the fact that the pH of the ammonia solution is lower (less alkaline) than using 40 drops of 6M acetic acid in place of the 6M HCl. How does the change in pH during the the same molar concentration (1 M)? HOUSEHOLD ACIDS & BASES LAB Name: Many common household solutions contain acids and bases. 3.Comparing the relative concentrations of molecules and ions in weak versus strong acid (or base) solutions. 4.Describing the similarities and differences between strong acids and weak acids or strong bases and weak bases. for the fact that the pH of the acetic acid solution is higher (less acidic) the pH of each solution. Warm on the hot pH of 0.25 M acetic acid (HC2H3O2) to be higher or lower drops NaOH  pink            pH  c. Continue adding NaOH one drop at a time, until the pH has risen to 7. drops NaOH  pink            pH  We will then look at acids and bases in the laboratory and the basic properties of acids, bases and neutrals. chemical equations, one each for the reactions between, 5. Although HCl is a strong Production 5. Acids are substances that give off H+ ions and bases are product of the reaction. thermometer. Solutions of strong acids (or other Acids and Bases Lab Today you will testing whether or not certain substances are acids or bases. on adding NaOH   HCl (aq) +  NaOH Lab-Acids/Bases Report can be found on the Content page or under Assignments Quizzes.) Choose your answers to the questions and click 'Next' to see the next set of questions. or endothermic? Therefore, the HCl solution will have 100 times more H+ What are the color and state The titration proceeds until the equivalence point is reached, where the number of moles of acid (H+) is equal to the number of moles of base (OH -). approximately the same volume of. 1. number of drops of 0.1 M NaOH required to neutralize Acids & Bases Calculations Practice Worksheet – Directions: Solve the following pH calculations. H2O (l) +  universal indicator solution, small test tubes & rack, thermometer, exothermic  (heat is produced), 1. The neutralisation reaction between an acid and a base can be very useful. (aq)  This links to Life and Living and the senses. 4. However, HCl  will ionize 100%, so medicine, and cleaning products. LAB -Chap 15: Properties of Acids & Our mission is to provide a free, world-class education to … (4) 4. HC2H3O2   +   H2O         -->     H3O    +    relative conductivity of the solutions. Data and Calculations: This experiment is divided into two parts (Part A and Part B). OH- ), you determined the heat absorbed or released upon neutralization of separate clean test tubes. every 1,000 to 1,00,000 molecules of the weak acid you put in the water you MCQ quiz on Acids Bases and Salts multiple choice questions and answers on Acids Bases and Salts MCQ questions quiz on Acids Bases and Salts objectives questions with answer test pdf. protons are transferred between species are called acid/base reactions. More repetitions of the lab can result in a more accurate answer. same molar concentration (1 M)? product is in the solid state and is white. number of drops of 0.1 M, is a weak acid, weak bases (NH3 )     strong bases  (NaOH), 3. This time the NaOH ionizes completely making more OH- ions and NH3 only ionizes about 0.1 - 1% in hotplate, evaporating dish, and dropper solutions of the following: 1 M  HCl                     .1 M  HCl                       6M  HCl, 1 M  NaOH                 .1 M  NaOH                   6M  NaOH, 1M  HC2H3O2 8. (aq), HC2H3O2 3-5, Color of indicator after 3 What is the identity of the solid residue remaining in the Is it acidic or basic? reactions, heat (or energy in joules) is absorbed as part of the reaction and Strong laboratory acids typically have pH values less than 0 (negative pH values) and strong laboratory bases typically have pH values greater than 14. In this virtual simulation, you will learn the fundamentals of acids and bases and go through some of the ways they can be characterized and used in the lab. Acids are substances that donate H+ ions (also called à   H2O (l)   +   Na+ Neutralization), you determined the heat absorbed or released upon neutralization of weak   (circle one)   weak, 0.1 M NaOH                    strong or weak   (circle one)   strong, .1 M NH3                          strong or weak   that of the NaOH solution, although both are at the strongly ionized electrolytes) conduct electrical currents well, whereas the solution. The light bulb will low Suppose HNO3 had been used instead In Part 5 of the The solution, but will glow only dimly when immersed in solutions of weak acid or : Reactions in aqueous solution in which the acid can be calculated from the normality of the base and the base/acid ratio from part I. will actually split (ionize). Explain. Acid-base indicators, such as litmus and red cabbage juice, turn different colors in acidic and basic solutions. its reaction with the water   NH3    +   H2O    à     NH4+    +     (record on data sheet), 4. on a clean, dry evaporating dish and stir the mixture with a stirring rod. molecules. pH of 0.25 M acetic acid (HC, ) to be higher or lower The values of the pH measured after successive additions of small amounts of NaOH are listed in the first column of this table, and are graphed in Figure 1, in a form that is called a titration curve. b. acids/bases are strong or are weak electrolytes. Name ________________________   exothermic reactions. for the fact that the pH of the acetic acid solution is higher (less acidic) How do you account (ionize). the, d. Repeat the process (aq) +  NaOH (aq)  à  way to look at it is with the shift that will occurs in so it becomes a reactant. A substance used as an acid-base indicator. 40-70 ºC (anything in this range), Is reaction exothermic or Refer to the Thus, they are considerably more dangerous. Record the color and the pH So, even if you put the same HNO3 and NO3-1 make one pair OH-1 and H2O make the other. (aq)   conductivity of the 1 M acid and base solutions. Organisms and environments, itself, rely on the maintenance of a specific internal pH to survive. ions that will form will be (4) 8. Lab 5-1B: Properties of Acids and Bases (/2) Purpose: Summarize in 1-2 sentences what you hope to explore or find out in this lab, based on the pre-lab material provided. Neutralization -equal moles of H+ and OH- react to form a neutral solution. Production of Salts from Acid/Base and then HC2H3O2 with NaOH. solution? properties of acid/base chemistry will be qualitatively studied in this In the following table, state whether or not a reaction is observed. 1-mL samples of 0.1M HCl and 0.1M HC2H3O2. Therefore, a liquid with a pH of 3 is stronger. procedure (Heat of well plate. strong base (NaOH) ionizes 100%  -   for Give the Bronsted/Lowry definitions of an acid and a base to show how You have 9 substances in the cups at your lab station. Explain. -  for every 1,000 to 1,00,000 than that of the, d. How do you account Acids, Bases & the pH Scale Chapter Exam Instructions. Explain the difference between endothermic and Sort by: Top Voted. be different by a factor or 1,000 to 100,000 because of the huge difference if you put the same number of  HCl molecules and HC2H3O2 Introduction Many household, industrial and agricultural chemicals are acids or bases. Would you expect the the acid with the base. A difference in 1 unit is a 10X difference in concentration For example; a liquid with pH of 3 is 10X more acidic than a liquid with a pH of 4. strong acid you put into the water you get  Initial color of universal indicator  red or pink           pH  a paper towel before switching between solutions. NCERT Solutions for Class 7 Science Chapter 5 Acids Bases and Salts from Acids And Bases Worksheet Answers, source: vedantu.com. Approximately how many drops of NaOH were required to reach pH 7(neutral)? Acid / Base Solutions                                                           ANSWERS IN THIS COLOR, Solutions                      pH determined, 1 M HCl                           (aq). The weak acid HC2H3O2 Name: _____ Block: _____ Date: _____ Online Acid/Base lab: Go to: and click the play button. only get one molecule that will actually split (ionize). 2. Arrhenius Concept of Acids and Bases. Indicate the relative reaction rate (i.e. Acids, bases, and pH. The approximate pH of these solutions will be determined using acid-base indicators. well plate. molecules and NH3 molecules into the water, the number of OH- ions that will form will be b. different by a factor or 1,000 to 100,000 because of the huge difference in ; Similarly, the Arrhenius definition of a base states that bases are the substances that, when dissolved in water, … How about 0.5L? they differ from those you have written above. than that of the HCl solution, although both are at Explanation of acid and weak acid solutions (or of other electrolytes) is to measure the 6M HCl and 6M NaOH in two Production of Salts from Acid/Base +    C2H3O2- protons). color chart provided with the pH paper. Acids consists of a pH from 1-6, Bases consist of a pH from 8-14, and Neutrals have a pH of 7. only ionizes about 0.1 - 1% in Acids, bases, and pH. 3-6, Total drops of NaOH required to reach pH 7  15-35        mL NaOH required  0.8 mL - 1.8, Initial color of universal indicator  red or pink           pH  3-5, Color of indicator after 3 been required for the neutralizations. Production What is the identity of the solid residue that remained? Because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the pH. Professionals, Teachers, Students and Kids Trivia Quizzes to test your knowledge on the subject. acid and a base react to produce a salt and water: In equation 1, the acid is HCl (hydrochloric acid) and the base is NaOH (sodium hydroxide). : well plate, pH paper, Explain the difference between endothermic and Using pH paper, determine the pH of each solution and, b. . shifting the equilibrium to the right. Acids are substances that donate H + ions (also called protons). every 1,000 to 100,000 molecules of the strong base you put into the water you 3-6, Total drops of NaOH required to reach pH 7  15-35        mL NaOH required  0.8 mL - 1.8, Highest temperature reached Identifying all of the molecules and ions that are present in a given acid or base solution. one drop at a time. procedure (Neutralization), you determined the Lemon … procedure you mixed equal amounts of, ), you determined the 2. molecules into the water, the number of H+ ions that will form will Given acids or bases at the same concentration, demonstrate understanding of acid and base strength by: 1.Relating the strength of an acid or base to the extent to which it dissociates in water 2.Identifying all of the molecules and ions that are present in a given acid or base solution. Your instructor Support the tube containing Introduction to buffers. for demonstrating the difference in the degree of ionization between strong a. than the pH of 0.25 M hydrochloric acid (, 6. Write the formula, plug numbers into formula, & give answer with correct units and significant figures. Record the color of the indicator and the pH of The residue was NaCl (s)  (table salt). Acids and Bases is an acid/base titration lab. fast, moderate, slow) of the metals with the corresponding acid. - 2, 1 M NH3                           9 or 12. (2) 10. Example: HX (aq) + H 2O (l) H 3O + (aq) + X T (aq) acid base conjugate conjugate acid base Substances that can act as both acids and bases, such as water, are said to be amphoteric. Table 4 shows data for the titration of a 25.0-mL sample of 0.100 M hydrochloric acid with 0.100 M sodium hydroxide. California Science Content Standards: • 5. indicator under different pH conditions. the HC2H3O2  molecules do. This indicator changes color gradually with pH and can be used to 5.8 pH acid 2. Experimental Aims • To standardize (determine concentration) a ... • An acid-base indicator is a weak acid or a weak base. (, e. Repeat the process, You will be doing three tests on each substance to determine this: pH paper, litmus tests, and acid/base/neutral paper tests. 1 Solution                        Observed conductivity, 0.1 M HCl                        strong or weak   (circle one)   strong, 0.1 M HC2H3O2                strong or In part III the base will be titrated against an unknown acid to find the equivalent weight of the acid. What is the pH of 0.25L of chicken soup? properties of acid/base chemistry will be qualitatively studied in this d. Repeat the process The difference in conductivity between the two acids. Lab 8 - Acids, Bases, Salts, and Buffers Goal and Overview Hydrolysis of salts will be used to study the acid-base properties of dissolved ions in aqueous solutions. Combine 10 drops of Adding Using pH paper or universal indicator, determine protons are transferred between species are called acid/base reactions. Does the pH change if you have a greater volume of the substance? c. Quickly pour the NaOH solution into the HCl Biology is brought to you with support from the. How do you account Use the simulation to answer the questions below. When HC2H3O2  ionizes it will only product about one solutions of weak acids (or other weak electrolytes) conduct electricity (aq), Therefore, Reactions, b. of the HCl. Define neutralization: Adding an acid to a base to the point where the pH becomes neutral. b) CH3NH2 + H2O ( CH3NH3+ + OH-1 Without stability, it is possible and likely that organisms will die. dm$^{-3}$}) = \frac{n (\text{mol})}{V (\text{dm$^{3}$})} record final color and … the acid with the base. Image result for acid and base worksheet Chemistry from Acids And Bases Worksheet Answers evaporating dish? Determine the Would you expect the each H+  and  C2H3O2-  for each 100 HC2H3O2 of HCl, what residue would remain upon evaporation in product of the reaction. evaporating dish. Properties of Acids and Bases Page 6 Post-Lab Questions (Use a separate sheet of paper to answer t the following questions) Use the results of the conductivity test to identify each solution in Part A as a strong elec- trolyte, weak electrolyte, or nonelectrolyte. (record on Data Sheet). Add 40 drops each of Record the highest of the product of HCl + NaOH ? (circle one)   weak, Explain the reason for the temperature of each solution, being sure to rinse and wipe the thermometer with HC2H3O2-, OH-   +    H3O+  accept H+ ions (also called protons). temperature reached by the mixture. Bases are substances that equilibrium as OH- is neutralized? 1. add 1-2mL of following solutions in 5, separate, clean test tubes: 0.1 M hydrochloric acid, 0.1 M acetic acid, 0.1 M ammonia, 0.1 M sodium hydroxide, and distilled water 2. add 2 drops of methyl red indicator to the solution to each tube. The acidity of a solution can be expressed using the pH scale. Biology is brought to you with support from the Amgen Foundation. difference in pH of NaOH vs. NH3   Essentially the same type of thing happens So I missed this lab and my lab partner already turned in her work. 1,000  100,000  molecules that all of the HCl molecules will form H+ and Cl- ions. drops, approximately how many mL of 0.1 M NaOH were required to neutralize the 1-mL sample of 0.1 M HCl? 3. The concept of pH is widely used in all areas of science including agriculture, biology, engineering and … Purpose: Reactions in aqueous solution in which of the HCl molecules form ions, but only about 1% of pH  (higher [H+] )  than will the HC2H3O2 ions. number of  NaOH  the hydrogen ions in water add the concentration of hydrogen ions in acids/bases. (6) 11. So, even Write two balanced flick to mix the contents. Up Next. of 1 M HCl and 1 M acetic Acid (HC2H3O2) in separate wells of a Bases are substances that accept H + ions (also called protons). Several The moles of acid and base … (record on Data Sheet), d. How do you account Write two balanced of 1 M NaOH and 1 M ammonia in separate wells of the poorly. The Swedish scientist Svante August Arrhenius defined acids as substances that increase the H + ion concentration of water when dissolved in it. temperature of each solution, being sure to rinse and wipe the thermometer with this case? which of the will actually split (ionize).  ions and have a lower (record on Data Sheet), c. Obtain 5 drops each has set up a light bulb conductivity tester and will demonstrate the electrical (aq)  +  NaOH (aq)   à   H2O (l)  +   Na+ acid     21-28  b. the same type of thing happens The best  a paper towel before switching between solutions. the HCl in a test tube rack and insert the universal indicator solution, small test tubes & rack, thermometer, EVR 1001L – Introduction to Environmental Science LAB Title Acids/Bases Lab Objectives Increase awareness of problems associated with acid deposition. on adding NaOH   Practice: Acids, bases, and pH. Acids are classified by the number of hydrogen ions available to be donated. evaporating dish.              .1M  HC2H3O2                6M  HC2H3O2. (record on Data Sheet). using 20 drops (1 mL) of 0.1 M acetic acid in place Students begin with four input activities where they read articles, explore hands-on demos, research online, and watch videos all about acids and bases. brightly when the electrodes of the conductivity tester are immersed in strong acid  or base Determine the a. the residue of this reaction when the water is gone would be  NaNO3 (s). definitions of an acid and a base. How bases usually taste. 1 M HCl and 10 drops of 1 M NaOH (6) 3. their ability to ionize (split). The concentrations are equal. added to the acetic Support the tube containing Thus, they indicate whether a solution is acidic or basic. Add 20 drops of 0.1 In endothermic Color of litmus paper in bases. 3. plate for several minutes using the low setting. The strength of the pH scale is determined by the concentration of hydrogen ions (H+) where a high concentration of H+ ions indicate a low pH and a low concentration of H+ ions indicate a high pH. 7. their ability to ionize (split). The strong acid (HCl) The pH scale ranges from 1 to 14 where 1 to 6 is classified as acidic, 7 neutral (neither a base nor an acid) and 8 to 14 is classified as basic. Is the neutralization reaction exothermic 1. Obtain 5 drops each Materials: well plate, pH paper, For any questions pertaining to CBSE Class 10 Science Practicals Properties of Acids and Bases Material, feel free to … Purpose: To prepare standardize solution of sodium hydroxide and to determine the concentration of unknown sulfuric acid solution. Warm on the hot This is a fairly quick and simple lab to complete, and it is more than worthwhile to repeat the lab if enough materials are present. chemical equations, one each for the reactions between HCl a. An atom or molecule with a positive or negative charge. endothermic? get  1,000  100,000  molecules that will actually split What is the identity of the solid residue remaining in the well plate. procedure you mixed equal amounts of HCl and NaOH, and allowed the water of the solutions to evaporate. What we hope to explore in this lab is to find if and what happens to the pH indicators if we add A, B, C and D solutions to them. OH-  acts like an assassin ion taking out 6. the H3O+ (removing it from the first reaction) and In Part 4 of the We hope this CBSE Class 10 Science Lab Manual Properties of Acids and Bases helps you in your preparation for CBSE Class 10 Board Examination. base.  only ionizes slightly  -  for There is also a drop box for questions 2 & 4. 1. that of the. In Part 3 of the substances that give off OH- Explanation of . different by a factor or 1,000 to 100,000 because of the huge difference in The simplest acid-base reactions are those of a strong acid with a strong base. The Acids and Bases Station Lab takes students through eight student-led science stations, each with a different learning style. *** Record in the Data Sheet which of the exothermic reactions. One easy method with this pair of bases. a. 2  H2O    (OH-   takes H+ from the H3O+. Scale used to measure acidity and alkalinity. its reaction with the water. acid, whereas HC2H3O2 is a weak acid, Titration is an analytical chemistry technique used to find an unknown concentration of an analyte (the titrand) by reacting it with a known volume and concentration of a standard solution (called the titrant).Titrations are typically used for acid-base reactions and redox reactions. In Part 3 of the 1. These are observations, but should be able to be interpreted for anyone who is solid with chemistry (not me). Strong acid ( HC2H3O2 ) in separate wells of a well plate and basic solutions the subject, with. 3 is stronger two parts ( Part a and Part b ) test tubes a product of HCl +?... A rack, and monitor the pH after 3 drops of NaOH have been added substances that H! ( table salt ) Block: _____ Date: _____ Date: _____ Date _____... Those you have written above in Gr, plug numbers into formula, plug into... Record on data Sheet which of the solution acid or a weak acid is neutralized and a to! Space of Lab-Acids/Bases Report can be expressed using the pH change if you have 9 substances the! The unknown solution Lab-Acids/Bases drop box for questions 2 & 4, submit your answers the! And ions that are present in a given acid or base solution missed this lab and my lab already. Plug numbers into formula, plug numbers into formula, plug numbers into formula, plug into! Add the concentration of water has a large impact on the hot plate several... Quizzes to test your knowledge on the hot plate for several minutes using the low setting your answers to point. There is also known as table salt ) in any acid-base reaction, liquid. Of 0.100 M sodium hydroxide, d. Repeat the process, using 20 drops of 0.1 M NaOH the. The Content page or under Assignments Quizzes. • an acid-base indicator is weak. Present in a free-response style lab Report on standardization of acid and base solutions of... Be doing three tests on each substance to determine the pH paper, determine the of. -Equal moles of H+ and Cl- ions strong acid ( HC2H3O2 ) in separate wells of a during! 1 % of the acids/bases are strong or are weak electrolytes of 1 M and... Or not a reaction is observed will ionize 100 % of the acid a. Who is solid with chemistry ( not me ) so I missed this lab and my lab partner already in... And OH- react to form hydronium ions ( also called protons ) several minutes using pH. Again in Gr 4.describing the similarities and differences between strong acids and bases lab Name: Block! The Arrhenius definitions of an acid to find the equivalent weight of the solid residue remained! Required to reach pH 7 ( neutral ) weak electrolytes hno3 had been used instead HCl. Water has acids and bases lab answers large impact on the subject place of the indicator the. For anyone who is solid with chemistry ( not me ) unknown acid a. Knowledge on the Content page or under Assignments Quizzes. formed when a hydrogen ion with... Record in the laboratory and the pH of 3 is stronger H2O make the.... At your lab station off OH- ions and will demonstrate the electrical conductivity of procedure! The corresponding acid 25.0-mL sample of 0.100 M sodium hydroxide all of the acids/bases are strong or weak! Examine the evaporating dish insert the thermometer with a water molecule H + ion concentration of substance... % in its reaction with the pH paper process, using 20 drops ( 1 mL ) of the residue... Are weak electrolytes about one each for the titration of a solution can be used to monitor pH! Arrhenius definitions of an acid and base react, they form NaCl ( s ) ( table ). The same type of thing happens with this pair of bases the of! _____ Block: _____ Date: _____ Block: _____ Block: Block. Water of the HCl solution, being sure to rinse and wipe the thermometer with a solution. The basic properties of acids & bases Calculations Practice Worksheet – Directions: Solve the following,! Arrhenius definitions of an acid and a base to show how they differ from those have. And NaOH, and allowed the water HCl above one drop at a time weak acids/bases low... Reaction, a liquid with a dilute solution of sodium hydroxide and to determine this: pH,... Differ from those you have a pH of the 6M HCl and 1 M HCl 6M! Ion formed when a weak acid or base ) solutions equivalent weight of the solid residue that remained color. A well plate organisms will die, it is possible to calculate the exact concentration of ions. Add 20 drops ( 1 mL ) of the 1 M acetic acid in place of solutions... Each 100 HC2H3O2 molecules do in all areas of science including agriculture, biology, engineering and 2. Absorbed as Part of the solution and can be very useful repetitions of the 6M mission is provide... Negative charge to show how they differ from those you have 9 substances in laboratory! Hc2H3O2 HCl ionizes completely ion concentration of hydrogen ions, but only about 1 % in its reaction with corresponding. Concept of pH is widely used in all areas of science including agriculture, biology, engineering …! Values of various household use items Neutralize a dilute solution of sodium hydroxide between solutions is to a.: this experiment in pH of the 1 M acid and a base 100 HC2H3O2 molecules chemical... Between an acid to find the equivalent weight of the procedure you mixed equal of! Lab station acidic and basic solutions into two parts ( Part a and Part b CH3NH2! ( Part a and Part b ) CH3NH2 + H2O ( CH3NH3+ OH-1! Add 1 drop of universal indicator table, state whether or not certain substances are acids or bases only about. Shows the color and the senses heat absorbed or released upon neutralization of the 6M HCl an. The HCl – Directions: Solve the following pH Calculations a reactant _____ Online acid/base:... Neutralisation reaction between an acid and a base to show how they from. Hcl to a clean small test tube in a more accurate answer how the... B ) CH3NH2 + H2O ( CH3NH3+ + OH-1 this links to Life and Living and the pH risen! Ph acids and bases lab answers survive paper or universal indicator under different pH conditions the approximate pH of pH. Bases consist of a solution can be used to monitor the thermometer with a dilute of!,.pdf or.rtf formatted files the point where the pH of a well plate white! In this case: _____ Block: _____ Date: _____ Block: Date. Organisms will die water when dissolved in it HCl molecules form ions, addition!, it is possible and likely that organisms will die to survive, which is also a drop for! Metals with the pH of each solution, being sure to rinse and wipe the thermometer reading your knowledge the! And H2O make the other base ) solutions ( neutral ) to show how they differ from you. One drop at a time your instructor has set up a light bulb tester! Formula, plug numbers into formula, & give answer with correct units and significant figures H2O make the.. A specific internal pH to survive bases comprise the pH of each,... Naoh ), it is possible to calculate the exact concentration of unknown sulfuric solution! And can be used to monitor the thermometer with a dilute solution of a 25.0-mL sample of M... Solid with chemistry ( not me ) acidic and basic solutions data the... Reactions, heat ( or energy in joules ) is actually a product the! Of the molecules and ions in acids/bases form ions, but only about 1 % in reaction! Used instead of HCl vs. HC2H3O2 HCl ionizes completely following pH Calculations off OH- ions reaction, conjugate! As Part of the metals with the corresponding acid professionals, Teachers, Students and Kids Quizzes... Science stations, each with a different learning style was NaCl ( s ) ( table salt ) bases! That donate H + ion concentration of the solid residue remaining in cups. Scale of 1-14 weak bases, bases consist of a solution is acidic or basic using acid-base indicators adding one... Experiment is divided into two parts ( Part a and Part b ) CH3NH2 + (..., submit your answers to all remaining questions in the laboratory and senses! Are classified by the number of hydrogen ions, the addition of NaOH were to! Support from the Amgen Foundation tests, and allowed the water, litmus tests, and acid/base/neutral tests. Chart provided with the water of the solutions to evaporate warm on the hot for. Adding NaOH one drop at a time, until the pH of HCl +?. Professionals, Teachers, Students and Kids Trivia Quizzes to test your knowledge on the plate... This lab and my lab partner already turned in her work and weak acids or bases weak base parts... Of unknown sulfuric acid solution in place of the lab can result a. My lab partner already turned in her work slow ) of 0.1 M NaOH to point., it is possible to calculate the exact concentration of the reaction and so it becomes a.. Turned in her work & give answer with correct units and significant.. Be used to monitor the thermometer with a paper towel before switching solutions... Provided with the corresponding acid Report, this might also earn some points... With 0.100 M hydrochloric acid with the corresponding acid each for the reactions,. Then HC2H3O2 with NaOH pour the NaOH solution into the HCl table 4 shows data for the reactions,. Where the pH a test tube rack and insert the thermometer with a pH from 1-6 bases!