Post by: SGallaher96 on Mar 21, 2021
Question 1
What is the equilibrium concentration of PO43- in a 0.809 M solution of H3PO4(aq)? (Ka1 = 7.5 × 10-3, Ka2 = 6.2 × 10-8, Ka3 = 4.8 × 10-13)
◦ 7.4 × 10-2M
◦ 2.2 × 10-4M
◦ 3.82 × 10-19M
◦ 6.2 × 10-7M
◦ 6.2 × 10-8M
Question 2
What is the equilibrium constant for the following reaction? N3– + H3O+
HN3 + H2O
The Ka value for HN3 = 1.9 × 10–5.
HN3 + H2OThe Ka value for HN3 = 1.9 × 10–5.
◦ 5.3 × 10–10
◦ 1.9 × 10–9
◦ 1.9 × 10–5
◦ 5.3 × 104
◦ 1.9 × 109
Post by: xMRAZ on Mar 21, 2021
Answer 1
3.82 × 10-19MAnswer 2
5.3 × 104Post by: Mohamed A Enan on Nov 21, 2021