8. How many moles of solid NaF would have to be added to 2.0 L of 1.90 M HF solution to achieve a buffer of pH 3.0? Assume there is no volume change. (Ka for HF = 1.0 ×10-3 ) (A) 3.1 (B) 2.3 (C) 1.6 (D) 1.0 (E) 3.8

13. The value of the equilibrium constant K depends on I. the initial concentrations of the reactants. II. the initial concentrations of the products. III. the final concentrations of the reactants. IV. the final concentrations of the products. (A) I, II (B) II, III (C) III, IV (D) I (E) none of these

8. How many moles of solid NaF would have to be added to 2.0 L of 1.90 M HF solution to achieve a buffer of
pH 3.0? Assume there is no volume change. (Ka for HF = 1.0 ×10-3
)
(A) 3.1
(B) 2.3
(C) 1.6
(D) 1.0
(E) 3.8

相關試題

相關試卷

8. How many moles of solid NaF would have to be added to 2.0 L of 1.90 M HF solution to achieve a buffer of pH 3.0? Assume there is no volume change. (Ka for HF = 1.0 ×10-3 )(A) 3.1(B) 2.3(C) 1.6(D) 1.0(E) 3.8

相關試題

相關試卷

8. How many moles of solid NaF would have to be added to 2.0 L of 1.90 M HF solution to achieve a buffer of
pH 3.0? Assume there is no volume change. (Ka for HF = 1.0 ×10-3
)
(A) 3.1
(B) 2.3
(C) 1.6
(D) 1.0
(E) 3.8