Author Question: An aqueous solution of boric acid can be represented by the equilibrium system: B(OH)3(aq) + 2 ... (Read 28 times)

j.rubin · **on:** Jul 8, 2021

Question 1

An analysis of a Solvay plant show that for every 4.30 tons of NaCl consumed, 4.75 tons of NaHCO₃ is obtained. What is the % efficiency of this process for converting NaCl to NaHCO₃?
◦ 76.8%
◦ 61.8%
◦ 63.0%
◦ 158%
◦ 90.5%

Question 2

An aqueous solution of boric acid can be represented by the equilibrium system:

B(OH)₃(aq) + 2 H₂O(l)

H₃O⁺(aq) + B(OH)₄^-(aq) (K_a = 5.6 × 10^-10)

What is the pH of an eyewash solution which is 0.0018 M in boric acid?
◦ 3.75
◦ 4.75
◦ 6.00
◦ 7.49
◦ 9.25

Madisongo23 · **Reply #1 on:** Jul 8, 2021

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