40 mL pf 0.10 M sodium hydroxide is added to 60 mL of 0.10 M
40 mL pf 0.10 M sodium hydroxide is added to 60 mL of 0.10 M hydrochloric acid. The concentration of hydronium (in M) in the final solution is closest to?
1.0 X 10-7
2.0 X 10-3
2.0 X 10-2
3.3 X 10-3
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