| Date | May 2014 | Marks available | 1 | Reference code | 14M.1.hl.TZ2.27 |
| Level | HL | Paper | 1 | Time zone | TZ2 |
| Command term | Question number | 27 | Adapted from | N/A |
Question
Which compounds can be mixed together as aqueous solutions of equal volume and concentration to form an acidic buffer solution?
A. Sodium hydrogensulfate and sulfuric acid
B. Sodium propanoate and propanoic acid
C. Ammonium chloride and ammonia solution
D. Sodium chloride and hydrochloric acid
Markscheme
B
Examiners report
[N/A]
Syllabus sections
Show 60 related questions
- 17N.1.hl.TZ0.27: Which indicator is appropriate for the acid-base titration shown below? A. Thymol blue...
- 17N.1.hl.TZ0.26: Which of the following will form a buffer solution if combined in appropriate molar...
- 17M.2.hl.TZ2.8b.vi: Deduce the pKa for this acid.
- 17M.2.hl.TZ2.8b.iv: The following curve was obtained using a pH probe. State, giving a reason, the strength of...
- 17M.2.hl.TZ1.5d.ii: Suggest a suitable indicator for the titration of hydrazine solution with dilute sulfuric...
- 17M.1.hl.TZ1.27: A buffer is produced by mixing 20.0 cm3 of 0.10 mol dm−3 ethanoic acid, CH3COOH(aq), with...
- 16N.2.hl.TZ0.7b: (i) Sketch a graph of pH against volume of a strong base added to a weak acid showing how you...
- 16N.1.hl.TZ0.29: Which salt solution has the highest pH? A. NH4Cl B. Ca(NO3)2 C. Na2CO3 D. K2SO4
- 16N.1.hl.TZ0.28: Which mixture is a buffer solution? A. 25 cm3 of 0.10 mol dm-3 NH3 (aq) and 50 cm3 of 0.10...
- 16M.1.hl.TZ0.29: Which titration curve...
- 15M.1.hl.TZ1.29: Which mixture will form a buffer in aqueous solution? A. ...
- 15M.1.hl.TZ2.29: For which titration can the end point not be determined accurately by using an acid-base...
- 15M.2.hl.TZ1.8c.i: Determine the pH at the equivalence point of the titration and the...
- 15M.2.hl.TZ1.8c.ii: Identify, using table 16 of the data booklet, a suitable indicator to show the end-point of...
- 15M.2.hl.TZ1.8c.iii: Describe how an indicator, that is a weak acid, works. Use Le Chatelier’s principle in your...
- 15M.2.hl.TZ2.4a: Define the term buffer solution.
- 15M.2.hl.TZ2.4b: Explain, using appropriate equations, how this solution acts as a buffer solution.
- 15M.2.hl.TZ2.7g: (i) Sketch the pH titration curve obtained when...
- 14M.1.hl.TZ1.28: A weak acid is titrated with a strong base. Which statement is true for the titration...
- 14M.1.hl.TZ2.28: Which statements about an acid–base indicator are correct? I. It can be a weak...
- 14M.1.hl.TZ1.27: Which mixture of solutions can be used to prepare a buffer solution? A. ...
- 14M.1.hl.TZ1.29: Methyl orange is an indicator which changes its colour from red to yellow in a pH range of...
- 14M.1.hl.TZ2.30: Which graph would be obtained by adding...
- 14M.2.hl.TZ1.7c.vi: Identify a suitable indicator for this titration, using Table 16 of the Data Booklet.
- 14M.2.hl.TZ1.7c.ii: A buffer solution is made using \({\text{25.0 c}}{{\text{m}}^{\text{3}}}\) of...
- 14M.2.hl.TZ2.5b.vi: Describe, using HIn to represent the indicator in its acid form, why an indicator changes...
- 14N.1.hl.TZ0.29: The acid–base indicator phenol red, HIn, changes colour from yellow to red over a pH range of...
- 14N.2.hl.TZ0.8f: (i) Most indicators are weak acids. Describe qualitatively how indicators...
- 13N.1.hl.TZ0.29: Which pair of compounds could be used to make a buffer solution (assuming appropriate molar...
- 13N.2.hl.TZ0.7d.ii: Identify one indicator that could be used when titrating aqueous sodium hydroxide with both a...
- 13N.2.hl.TZ0.7e.i: Explain how the \({\text{p}}{K_{\text{a}}}\) could be determined from a graph of pH against...
- 13M.1.hl.TZ1.29: The colours of three indicators are shown in the table below. Equal volumes of these three...
- 13M.2.hl.TZ1.1f.i: State what is meant by a buffer solution.
- 13M.2.hl.TZ2.6c.i: State whether the following mixtures, in the appropriate molar ratios, can be classified as...
- 13M.2.hl.TZ2.6d.ii: Using Table 16 of the Data Booklet, identify the most appropriate indicator for the titration...
- 12N.1.hl.TZ0.29: During a titration, \({\text{0.1 mol}}\,{\text{d}}{{\text{m}}^{ - 3}}\) sodium hydroxide is...
- 12N.2.hl.TZ0.3a: Describe the composition of an acidic buffer solution.
- 10N.1.hl.TZ0.28: Equal volumes and concentrations of hydrochloric acid and ethanoic acid are titrated with...
- 10N.1.hl.TZ0.29: Bromophenol blue changes from yellow to blue over the pH range of 3.0 to 4.6. Which statement...
- 10N.2.hl.TZ0.6d: (i) Calculate the volume of the sodium hydroxide solution required to react exactly with...
- 09N.1.hl.TZ0.28: Which indicator would be the most appropriate for titrating aqueous ethylamine,...
- 09N.2.hl.TZ0.8a.i: Determine the pH at the equivalence point.
- 09N.2.hl.TZ0.8a.iv: Estimate, using data from the graph, the dissociation constant, \({K_{\text{a}}}\), of the...
- 09N.2.hl.TZ0.8a.ii: Explain, using an equation, why the equivalence point is not at \({\text{pH}} = 7\).
- 09N.2.hl.TZ0.8a.v: Suggest an appropriate indicator for this titration.
- 09N.2.hl.TZ0.8c.i: Explain what is meant by the term buffer solution.
- 10M.2.hl.TZ2.7c: (i) Explain why the pH of the ammonia solution is less than 13. (ii) Estimate the pH...
- 09M.1.hl.TZ1.28: Which mixtures could act as buffers? I. NaOH(aq) and HCl(aq) II. NaOH(aq) and...
- 09M.2.hl.TZ1.2b: The graph below shows a computer simulation of a titration of...
- 11M.2.hl.TZ1.8a.iii: The graph below indicates the pH change during the titration of...
- 11M.2.hl.TZ1.8a.v: Sketch a graph, similar to the graph on the previous page, to indicate the change in pH...
- 11M.1.hl.TZ1.29: Which compounds can be mixed together as solutions of equal volume and concentration to form...
- 11M.2.hl.TZ1.8a.iv: Explain how the graph could be used to determine the \({\text{p}}{K_{\text{a}}}\) of ethanoic...
- 11M.1.hl.TZ2.29: The graph below shows the titration curve of \({\text{25 c}}{{\text{m}}^{\text{3}}}\) of...
- 11M.2.hl.TZ2.5a.v: \({\text{25.0 c}}{{\text{m}}^{\text{3}}}\) of...
- 11M.2.hl.TZ2.5a.vi: State what is meant by a buffer solution and explain how the solution in (v), which contains...
- 12M.1.hl.TZ2.26: Which mixtures are buffer solutions? I. ...
- 12M.1.hl.TZ2.27: Which titration curve is produced by the titration of...
- 12M.2.hl.TZ2.8d: A solution of ammonia has a concentration of...
- 12M.2.hl.TZ2.8f: (i) Identify the property of bromocresol green that makes it suitable to use as an...
