When equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed, the pH of the resulting solution will be:
1. | 12.65 | 2. | 2.0 |
3. | 7.0 | 4. | 1.04 |
Which of the following salts will give the highest pH in water?
1. KCl
2. NaCl
3. Na2CO3
4. CuSO4
1. | 7.00 | 2. | 7.87 |
3. | 5.13 | 4. | 6.13 |
Equimolar solutions of the following substances were prepared separately. Which one of these will record the highest pH value?
1. \(\mathrm{B a C l_{2}}\)
2. \(\mathrm{A l C l_{3}}\)
3. \(\mathrm{L i C l}\)
4. \(\mathrm{B e C l_{2}}\)
What is the [OH-] in the final solution prepared by mixing 20.0 mL of 0.050 M HCl with 30.0 mL of 0.10 M Ba(OH)2?
1. 0.10 M
2. 0.40 M
3. 0.0050 M
4. 0.12 M
Equal volumes of three acid solutions of pH 3, 4 and 5 are mixed in a vessel. What will be the H+ ion concentration in the mixture?
1.
2.
3.
4.
1. SrCI2
2. BaCl2
3. MgCl2
4. CaCl2
The pOH of a solution at 25 °C that contains 1×10-10 M of hydronium ions is:
1. | 7.00 | 2. | 4.00 |
3. | 9.00 | 4. | 1.00 |
The hydrogen ion concentration of a 10-8 M HCl aqueous solution at 298 K (Kw = 10-14) is:
1.
2.
3.
4.