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meerkat18
Nitric acid is a strong acid, and so is completely dissociated into H+ and NO3- ions. So, the concentration of H+ is (conceptually) 4.60 mol H+/L. So, the number of moles of protons in this solution is: 
4.670 mol H+ /L X 0.0350 L = 0.1645 mol H+
The answer in this question is 0.1645 mol H+
dixietrailing

Answer:

0.158 mol H+

Explanation:

Trying to find moles of protons in 35mL of a 4.50 M solution of nitric acid (HNO3). HNO3 split up is H+ and NO3-. NO3- is negatively charged and we are trying to find protons, which are positively charged, so you gotta go with H+. Find moles of H+ in HNO3.

Math:

35.0 mL x 1 L/1000 mL = 0.035 L

Find: Mol H+/L

Mol H+/L = (4.50 mol HNO3/1 L) x (0.035 L/1 mol HNO3) x (1 mol H+/1 mole HNO3) = 0.158 mol H+

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