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

/in /by

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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