(a) For the reaction 2 A (aq) ⇋ 2 B (g) + C (g), the equilibrium...

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(a) For the reaction 2 A (aq) ⇋ 2 B (g) + C (g), the equilibrium...

(a) For the reaction 2 A (aq) ⇋ 2 B (g) + C (g), the equilibrium constant is 4.78 at 25.0oC. If the concentrations of B (aq) and C (aq) are both equal to 0.371 M, what concentration of A (aq) is necessary to have a value for ΔG of -10.0 kJ / mol?

(b) We have a buffer solution which is produced after the addition of 11.9 g of Ca (OH) 2 to 1,000 L of a 0.555 M solution in HA (aq). The pH of the buffer solution is 3.18. What is the value of Ka for HA (aq)?

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Answer 1

Answer #1

б. 2А (4) = 2в (-) + cle) (б. зә) 3 & (reaction quotients : Св* Сc) CA71 EAJ? дч 04° + рт и Д4 = - 2т + 2т 04 - вт [ hq – Am 6. Moles = mass Mo Mw (ca 1842) = 74.093 ginal melon-mess (Mw) ... mole of Ca (OH) = 1.9 o 7.4.093 ginal we have taken volume

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