A 1.0-L buffer solution contains 0.300 mol acid, HA, and 0.300 mol base, NaA. The value of K, for the acid HA is 2.9x10-8. Ignoring the small volume change, what is the most likely pH of the solution if a 10.0 mL- sample of 1.00M HNO3 is added to the original buffer? 11.30 < pH < 11.45 O 7.45 < pH < 7.60 O 6.34 < pH < 6.49 く O 3.65 < pH < 3.78 く

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A 1.0-L buffer solution contains 0.300 mol acid, HA, and 0.300 mol base,
NaA. The value of K, for the acid HA is 2.9x10-8. Ignoring the small
volume change, what is the most likely pH of the solution if a 10.0 mL-
sample of 1.00M HNO3 is added to the original buffer?
O 11.30 < pH < 11.45
O 7.45 < pH < 7.60
O 6.34 < pH < 6.49
O 3.65 < pH < 3.78
Transcribed Image Text:A 1.0-L buffer solution contains 0.300 mol acid, HA, and 0.300 mol base, NaA. The value of K, for the acid HA is 2.9x10-8. Ignoring the small volume change, what is the most likely pH of the solution if a 10.0 mL- sample of 1.00M HNO3 is added to the original buffer? O 11.30 < pH < 11.45 O 7.45 < pH < 7.60 O 6.34 < pH < 6.49 O 3.65 < pH < 3.78
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