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Acid-Base ChemistryMCQ

When 0.0030 mol of HCl is added to 100. mL of a 0.10 M solution of a weak base, R2NH, the solution h — Acid-Base Chemistry Chemistry Question

Question

When 0.0030 mol of HCl is added to 100. mL of a 0.10 M solution of a weak base, R2NH, the solution has a pH of 11.10. What is Kb for the weak base?

A.

2.9 × 10–3

B.

5.4 × 10–4

✓ Correct
C.

4.1 × 10–5

D.

1.6 × 10–5

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