0.1575 mol protons
Work Step by Step
You have 35mL of 4.50M Nitric Acid solution. 4.50M means you have 4.50 mol/L. You have 35mL, which is 35mL*(1L/1000mL) = 0.035L. Therefore, we have 4.50 mol/L * 0.035L = 0.1575 mol of Nitric Acid HNO3. There is 1 mol of protons in each mol of Nitric Acid. Therefore, we have 0.1575 mol protons.