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Solution: How many grams of HNO3 are needed to make 315 mL of a solution with a pH of 2.60? The molar mass of HNO3 is 63.02 g/mol. 1. 19.9 g 2. 0.502 g 3. 0.158 g 4. 1.25 × 10−5 g 5. 0.0498 g

Problem

How many grams of HNO3 are needed to make 315 mL of a solution with a pH of 2.60? The molar mass of HNO3 is 63.02 g/mol.

1. 19.9 g

2. 0.502 g

3. 0.158 g

4. 1.25 × 10−5 g

5. 0.0498 g