I. A titration is the progressive addition of one reagent to another. II. A titration involves a...
Question:
I. A titration is the progressive addition of one reagent to another.
II. A titration involves a chemical reaction between an acid and a base.
III. The indicator endpoint shows that chemically equivalent amounts have been brought together.
IV. A titration results in a solution with a pH of 7.0 at the equivalence point.
Regarding titrations, which of the above statements are always true?
a. I and II
b. I and III
c. II and III
d. I, II, III, and IV
Titration:
Titration is a classic analytical method during which a standard reagent is slowly added to a sample containing an unknown solution until the reaction is judged complete. The neutralization point is often indicated by a color transition, color disappearance, color development, and/or precipitation.
Answer and Explanation: 1
Become a Study.com member to unlock this answer! Create your account
View this answer
Answer: (b.) I and III
- I. A titration is the progressive addition of one reagent to another.
- III. The indicator endpoint shows that chemically...
See full answer below.
Ask a question
Our experts can answer your tough homework and study questions.
Ask a question Ask a questionSearch Answers
Learn more about this topic:

from
Chapter 24 / Lesson 7Learn about the titration equation and its uses in titration calculations. Find titration calculation examples covering how to calculate molarity from titration.
Related to this Question
- I. A titration is the progressive addition of one reagent to another. II. A titration involves a chemical reaction between an acid and a base. III. The indicator endpoint shows that chemically equivalent amounts have been brought together. IV. A titrat
- A titration has reached its equivalence point when: a. the indicator changes color b. the moles of acid = the moles of base c. the burette has been emptied d. adding more acid or more base will no longer change the pH of the solution
- A titration has reached its equivalence point when: - the indicator changes color. - the moles of acid = the moles of base. - the burette has been emptied. - adding more acid or more base will no longer change the pH of the solution.
- The point in a titration where the moles of acid are equal to the moles of base is known as the: a) turning point. b) equivalence point. c) indicator point. d) titration point.
- Consider the titration of 51.0mL of 1.2M NaOH with 1.0 M HCl. Find the pH at the following points: a. At the start of titration. b. At the equivalence point. c. After the addition of a large excess of acid (in comparison with the acid volume needed to r
- During a titration of an acid with a base, you are often asked to identify the endpoint. What is the correct definition of the endpoint? a. The point in the reaction when the moles of acid or base added (the titrant) are equal to half the moles of acid or
- What is the equivalence point of a titration? a. Where the amount of acid and base are equal b. Where there is no base and all acid c. When the volume of base in the burette is used up d. When there is all acid and no base
- During a titration of a weak acid with a strong base, add an additional small amount of base after reaching the equivalence point. How does the pH of the solution change? (a) Increase (b) Decrease (c) Remain unchanged
- Consider the titration of 20.00 ML of KOH 0.01 mol/L with { HNO_3 } 0.01 mol/L. Calculate the PH of the titration solution after the addition of the following titration volumes: A. 0.00 ml B. 19.
- An acid-base titration starts at a pH of 3.4 and reaches an endpoint of pH 8.5. Describe the type of sample and titrant being used in the titration
- In the titration of a weak acid with a strong base, the point at which the number of moles of acid equals the number of moles of the base is called the ________. (a) titration point (b) equivalence point (c) half equivalence point (d) dissociation point.
- During a titration of a weak acid with a strong base, add an additional small amount of base after reaching the equivalence point. How does the K_a of the acid change? (a) Increase (b) Decrease (c) Remain unchanged
- In an acid-base titration, what is the difference between a stoichiometric point and an endpoint?
- During titration, a 0.1 M solution of the weak acid HA was treated with 0.1 M NaOH until the volume of the added base was equal to the volume at the equivalence point (Veq. point), which was measured in liters (L). The pH was measured under these conditio
- Consider the titration of 48.5 mL of 1.2 M NaOH with 1.0 M HCl. Find the pH at the following points. a. at the start of the titration b. at the equivalence point c. after the addition of a large excess of the acid solution (in comparison with the acid vol
- When titrating a weak monoprotic acid with NaOH at 25 degree C, the A. pH will be greater than 7 at the equivalence point. B. titration will require more moles of acid than base to reach the equivalen...
- Consider the titration of 50.0 mL of 0.20 M NH3 with 0.40 M HI. After the addition of 20.0 mL of 0.40 M HI, what is the pH of the solution? Is this stage of the titration before or after the equivalence point?
- Consider the titration of 50.0 mL of 0.20 M NH3 with 0.40 M HI. After the addition of 40.0 mL of 0.40 M HI, what is the pH of the solution? Is this stage of the titration before or after the equivalence point?
- In an acid-base titration, an indicator is used to visually determine the equivalence point. a. What types of indicators can be used for experiments with pH change of acid to base? b. What colors are these this indicator at pH > 8?
- In the titration of weak acid (HA) with a strong base, at what added volume of titrant (V) is the maximum buffer capacity reached? V_e represents the volume at the equivalence point of the titration. \\ A.\ V = 0.25V_e\\ B.\ V = V_e\\ C.\ V = 0.75V_e\\ D.
- We add an indicator to show when the endpoint has been reached. Chemically, what is the significance of the endpoint in acid-base titration?
- In an acid-base titration experiment, 50 mL of a 0.0200 M solution of MES (K_a=5.37 \times 10^{-7}) was titrated with a 0.100 M solution of NaOH at 25 degrees C. The system will acquire this pH after addition of 1.00 mL of titrant : a) 4.21 b) 5.32 c
- When added to a solution, a buffer can: A. indicate when the equivalence point has been reached in a titration. B. lower the pH of the solution below 1. C. neutralize either a small amount of acid or base added to the solution.
- For the titration of a 25 ml sample of .10 M NH3 by 0.100 HCl. Calculate the PH of NH3 solution at the following point during titration. 1) Pior to the addition of any HCl 2) After the addition of 1
- What can be said about titrations that have different equivalence points? If a sample has a lower equivalence point, is it less acidic than a different sample that has a higher equivalence point?
- 4. Why should the increments of addition of titrant be narrowed down as the titration approaches the equivalence point?
- In the titration of a strong acid with a strong base, the pH of the initial acid solution (before the addition of base): a. depends on the concentration of the acid. b. is raised because of the presence of a conjugate base. c. depends on the K and concent
- In the titration of 50.0 mL of 0.10 M ammonia (K_b = 1.8 times 10^{-5}), calculate the pH: 1 ) Before titration begins 2 ) After addition of 20.0 mL of 0.10 M hydrochloric acid 3 ) After addition
- Only for the addition of 0.0 mL Consider the titration of 50.0 mL of 2.0 M HNO_2 (K_a = 4.0 x 10^-4) with 1.0 mu KOH. At each step of the titration... write a reaction to show the initial reaction upo
- A 0.201 g sample of antacid is dissolved in water, and then 50.0 mL of 0.100 M HCl is added so that the solution is acidic, The excess HCl is then titrated with 0.0883 M NaOH to the equivalence point. The back titration requires 20.33 mL to reach the end
- Consider the titration of 40.0 ml. of 0.250 M HCOOH with 0 200 M NaOH. Calculate the pH of the reaction flask at each of the following point: a. Before the titration begins b. After the addition of 10
- Consider the titration of 47.0 mL of 1.0 M NaOH with 1.0 M HCl. Find the pH at the following points. A. At the start of the titration. B. At the equivalence point. C. After the addition of a large
- In a titration of a strong base with a strong acid, 10mL of a .5M KOH were added to a 25mL of a .25M HCl solution. Calculate the pH of the solution after the addition of the KOH.
- Does the (H+) always equal the (OH-) at the equivalence point of a titration reaction? Explain.
- A student performed two titrations. Titration A: A strong monoprotic base is titrated with a strong monoprotic acid. Titration B: A weak monoprotic base is titrated with a strong monoprotic acid. a. Compare the expected approximate pH at the equivalence p
- Assuming an indicator works best when the equivalence point of a titration comes in the middle of the indicator range, which of the following acid-base indicators would be the best to use for the titration of a 0.50 mol/L solution of ammonia (NH3) with a
- When choosing which indicator to use in a titration reaction, you should consider: a. what color you would like to see at the end point of the titration b. the relative strengths of the acid and base you are using in the titration c. how long the titratio
- The end point of a titration is not the same as the equivalence point of a titration. Differentiate between these two concepts.
- Calculate the pH at each stage in the titration of 25.0 mL 0.10 M KOH(aq) with 0.25 M HCl(aq): 1. Initial (before titration) 2. After the addition of 5 mL of HCl 3. After the addition of 9.5 mL of HCl
- The equivalence point of any acid titrated with a base occurs when the: A. concentration of the acid and concentration of the titrant are equal. B. mass of the acid and the mass of the titrant are equal. C. pH of the mixture of the acid and titrant is 7.0
- Consider the titration of KHP with NaOH. Write the reaction that governs this neutralization. What is the stoichiometry between the acid and the base? If 0.4728 g KHP requires 22.86 mL of NaOH to reach the phenolphthalein pink end point, what is the molar
- What happens at the equivalent point in a titration? a. the pH of the solution is 7. b. the indicator is most colorful. c. there is an equal amount of moles of acid and base. d. the indicator has changed color.
- How will overshooting the end point of an acid-base titration by adding too much base to KHP affect the calculated molarity of the base?
- A student performs titrations. Titration A: a strong monoprotic base is titrated with a strong monoprotic acid. Titration B: a weak monoprotic base is titrated with the strong monoprotic acid compare the expected approximate pH at an equivalent point of
- What is the equivalence point in an acid-base titration?
- In an acid-base titration, the pH of the solution at the endpoint ______. (a) depends on the relative strength of the acid and base solutions used (b) depends on the relative strength of the acid only (c) depends on the relative strength of the base only
- The titration of a 26.1mL sample of 0.115M RbOH with 0.110M HCl was performed. What is the pH after adding 4.7mL of acid beyond the equivalence point?
- (a) Describe acid-base titration. (b) What is the equivalence point?
- The color change of phenolphthalein in an acid/base titration requires an over titration of 0.04 mL. Calculate the percent relative error if the total volume of titrant is (a) 50.00 mL (b) 10.00 mL (c) 25.00 mL (d) 40.00 mL
- What is the difference between an endpoint and an equivalence point in acid-base titrations?
- What can make the titrated solution at the equivalence point in an acid-base titration have a pH not equal to 7?
- In an acid-base titration experiment, 50 mL of a 0.05 M solution of acetic acid ( K a = 1.75 10 5 ) was titrated with a 0.05 M solution of NaOH at 25 C. The system will acquire what pH after addition of 40 mL of the titrant? (a) 3.27 (b) 4.58 (c
- A titration is performed by adding 0.435 M KOH to 60 mL of 0.164 M HNO_3. a) Calculate the pH before addition of any KOH. b) Calculate the pH after the addition of 11.31 mL of the base. c) Calculate the volume of base needed to reach the equivalence point
- In acid base titration, how does an indicator work?
- Consider these three titrations: (i) the titration of 25.0 mL of a 0.100 M monoprotic weak acid with 0.100 M NaOH (ii) the titration of 25.0 mL of a 0.100 M diprotic weak acid with 0.100 M NaOH (iii) the titration of 25.0 mL of a 0.100 M strong acid with
- Consider a titration using 0.1 M NaOH of 50 mL 0.1 M of hydrogen chloride acid (HCl). a) Write down a balanced net reaction of the titration. b) What is the volume of the solution at the equivalence point and which chemicals are present in the solvated ph
- Consider the titration of 37 mL of 0.110 M NaOH with 0.0838 M HCl. Calculate the pH of the resulting solution after the addition of 37 mL of the acid.
- Consider the titration of 37 mL of 0.110 M NaOH with 0.0838 M HCl. Calculate the pH of the resulting solution after the addition of 7.6 mL of the acid.
- Consider the titration of 37 mL of 0.110 M NaOH with 0.0838 M HCl. Calculate the pH of the resulting solution after the addition of 0.22 mL of the acid.
- You are titrating 100 mL of HCl with 0.5M NaOH and the equivalence point is reached after the addition of 15 mL of NaOH. i. Which compound is the acid? ii. Which compound is the base? iii. Write the reaction between both compounds. iv. What is the con
- Consider the titration of 50.0 mL of 0.125 M phosphorous acid, H_3PO_3, (K_{a1} = 3 \times 10^{-2}, K_{a2} = 1.62 \times 10^{-7}) with 0.250 M NaOH. The titration reaction occurring is: H_3PO_3 + OH^- \leftrightarrow H_2PO_3^- + H_2O \\H_2PO_3^- + OH^-
- In the titration of a weak acid with a strong base, the initial pH of the acid before base is added: a. depends only on the concentration of acid. b. is that of a weak acid. It depends on the Ka and concentration of acid. c. is influenced by the presence
- Consider the titration of a 36.0 mL sample of 0.180 molL^{-1} HBr with 0.205 molL^{-1} KOH. Determine each quantity: a) The volume of added base required to reach the equivalence point? b) The pH at 10.8 mL of added base?
- Consider the titration of 35.0 mL of 0.110 M LiOH(aq) with 0.110 M HBr(aq). Calculate the pH before the addition of any HBr(aq).
- The pKb values for the dibasic base B are pKb1 = 2.1 and pKb2 =7.8. Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.75 M B(aq) with 0.75 M HCl(aq) after addition of 75.0 mL of HCl.
- The pK_{b} values for the dibasic base 8 are pk_{b1} = 2.10 and pk_{b2} = 7.62 Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.85 M B(aq) with 0.85 M HCI(aq). (a) before the addition of any HCl (b) after addition
- Consider the titration of 35.0 mL of 0.170 M KOH(aq) with 0.170 M HBr(aq). Calculate the pH before the addition of any HBr(aq).
- At half titration of HCL with sodium hydroxide, do you make a buffer in this case? (Titration of a strong acid and a strong base.) Explain.
- Titration is performed by adding 0.13 M KOH to 60 mL of 0.363 M HNO_3. Calculate the pH after adding 5.00 mL of KOH past the equivalence point.
- Why isn't the pH at the equivalence point always equal to 7 in a neutralization titration? When is it 7?
- Why isnt the pH at the equivalence point always equal to 7 in a neutralization titration? when would it be 7?
- Why is the pH at the equivalence point not always equal to 7 in a neutralization titration? When would it be 7?
- In an acid-base titration experiment, 26.00 mL of the base is required to neutralize a 20 mL sample of an unknown acid solution. The pH of the solution when exactly 13.00 mL of the base is added is measured to be 2.75, and the concentration of the base is
- Acid: HCI 0.10 M Base: NaOH 0.050 M 3 ml of HCI was used. Calculate the volume of base required to reach the equivalence point of this titration.
- Two 20.0 mL samples, one 0.200 M KOH and the other 0.200 M CH_3NH_2, were titrated with 0.100 M HI. a. What is the volume of the added acid at the equivalence point for each titration? b. Predict whether the pH at the equivalence point for each titration
- Consider the titration of 60.0 mL of 0.95 M KOH(aq) with 0.95 M HCl(aq). Calculate the pH before the addition of any HCl(aq).
- Consider the titration of 35.0 mL of 0.230 M KOH(aq) with 0.230 M HCl(aq). Calculate the pH before the addition of any HCl.
- Consider the titration of 60.0 mL of a 0.050 M Ca(OH)2 solution with a 0.15 M HBr solution. What is the pH of the solution that results at the equivalence point of the titration?
- If an acidic solution (e.g. HCl(aq)) is titrated with a basic solution (e.g. NaOH(aq)) and phenolphthalein is used as an indicator, the solution color will change from to as the endpoint of the titration is reached.
- A 50.0 mL solution of 0.200 M sodium hydroxide is titrated with 0.200 M nitric acid. Compute the pH after the addition of 30.00 mL and also at the equivalence point of the titration.
- Match the statement with the type of titration it would apply to. Titration types can be used more than once or not at all. A. Endpoint/equivalence point pH is basic B. Endpoint/equivalence point pH is 7 C. Phenolphthalein would be an appropriate indicat
- The equivalence point is: a. The point at which the concentrations of base and acid are equal. b. The point at which the volumes of base and acid are equal. c. The point at which the concentration and volumes of base and acid are equal. d. The point at wh
- What is the difference between stoichiometric end point and end point in an acid-base titration?
- What would be a better indicator for a titration HC_2H_3O_2^- with NaOH; Methyl Red or Phenolphthalein? Explain your answer.
- A titration is performed by adding 0.127 M KOH to 60 mL of 0.352 M HC7H5O2. a. Calculate the pH before the addition of any KOH. b. Calculate the pH after the addition of 33.26, 83.15, and 165.3 mL of the base. c. Calculate the volume of base needed to rea
- Titration is performed by adding 0.13 M KOH to 60 mL of 0.363 M HNO_3. Calculate the pH before the addition of any KOH.
- Two 25.0 ml samples, one 0.100 mol/L HCl and the other 0.100mol/L HF, were titrated with 0.200 mol/L KOH. a)What is the volume of added base at the equivalence point for each titration? b)Predict wh
- Two 25.0-mL samples, one that is 0.100 M HCl and the other that is 0.100 M HF, are titrated with 0.200 M KOH. a. What is the volume of added base at the equivalence point for each titration? b. Is the pH at the equivalence point for each titration acidic,
- Consider the titration of 35.0 mL of 0.240 M KOH(aq) with 0.240 M HCl(aq). Calculate the pH before the addition of any HCI.
- Titration is performed by adding 0.13 M KOH to 60 mL of 0.363 M HNO_3. Calculate the pH after the addition of 33.51, 83.77 and 166.54 mL of the base.
- The pKb values for the dibasic base B are pKb1 = 2.10 and pKb2 = 7.51. Calculate the pH after the addition of 50.0 mL of HCl in the titration of 50.0 mL of a 0.55 M B(aq) solution with 0.55 M HCl(aq).
- The pKb values for the dibasic base B are pKb1 = 2.10 and pKb2 = 7.51. Calculate the pH after the addition of 100.0 mL of HCl in the titration of 50.0 mL of a 0.55 M B(aq) solution with 0.55 M HCl(aq).
- The pKb values for the dibasic base B are pKb1 = 2.10 and pKb2 = 7.51. Calculate the pH after the addition of 25.0 mL of HCl in the titration of 50.0 mL of a 0.55 M B(aq) solution with 0.55 M HCl(aq).
- The pKb values for the dibasic base B are pKb1 = 2.10 and pKb2 = 7.51. Calculate the pH after the addition of 75.0 mL of HCl in the titration of 50.0 mL of a 0.55 M B(aq) solution with 0.55 M HCl(aq).
- Which of the following is true? A). An indicator is not pH sensitive. B). The equivalence point is where the amount of acid equals the amount of base during any add-base titration. C). At the equiv
- At the equivalence point of a titration, equimolar amounts of hydrochloric acid and ammonia are mixed. The solution now contains only the product of the neutralization reaction. From the pH at the equivalence point, calculate pKb for ammonia. Report the p
- Consider the titration of 30.0 ml of 0.030 M NH3 with 0.025 M HCl. Calculate the ph after 0mL of titrant have been added.
- The endpoint of the acid/base titration between vinegar and NaOH occurred when: a. The acid and base neutralized each other. b. The phenolphthalein indicator turned faint pink. c. The moles of H+ were
- Consider the titration of 80.0 mL of 0.100 M Ba(OH)2 by 0.400 M HCl. Calculate the pH resulting: a. when no HCl is added b. at the equivalence point c. when 80.0 mL of HCl is added