10 The goal is to make a buffer with a pH 7.0 that has a concentration of o.1M u

Question

10 The goal is to make a buffer with a pH 7.0 that has a concentration of o.1M using the components below H 2CO3 (pKa1 3.6, pKa2 10.3) H2SO3 (pKa1 1.9, pKa2 7.21) a) Which of the following compounds would you use as the base component of the buffer? (Circle one) H2CO3 NaHCO Na2CO3 H2SO3 NaHSO Na2SO3 b) Which of the following compounds would you use as the acid component of the buffer? (Circle one) H2CO3 NaHCO Na2CO3 H2SO3 NaHSO Na2SO3 c) What concentrations of the acidic and basic components should be prepared. 50 10 base) (acid]

Explanation / Answer

a) NaHCO3, NaHSO3

b) H2CO3, H2SO3

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