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How many grams of nitric acid (HNO3) must be dissolved in 590 ml of water to make a solution with a pOH = 10.1?

Select one:
a. 2.9 x 10-9 g
b. 7.9 x 10-3 g
c. 4.7 x 10-3 g
d. 7.9 x 10-6 g
e. 7.4 x 10-5 g
10 years ago

Answers

DrBob222
Convert pOH to pH with
pH + pOH = pKw = 14.

Convert pH to (H^+) with pH = -log(H^+).

Then since HNO3 is 100% ionized, H^+) = (HNO3)

mols HNO3 needed = M x L = ?
mols HNO3 = grams/molar mass. You know mols and L, solve for grams.
10 years ago

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