Ask Question
17 August, 05:11

A 20.0 % by mass solution of phosphoric acid (H3PO4) in water has a density of 1.114 g/mL at 20°C. What is the molarity of this solution?

+5
Answers (1)
  1. 17 August, 05:24
    0
    Assume you have 1 L of the material (you can assume any volume you want, you'll get the same answer).

    Using the density, the one L has a mass of 1114 g

    20% by mass of phosphoric acid means the mass of phosphoric acid is 0.20 * 1114 g

    Calculate the moles of phosphoric acid

    Molarity, M, mole / L = moles of acid / volume or 1 L
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A 20.0 % by mass solution of phosphoric acid (H3PO4) in water has a density of 1.114 g/mL at 20°C. What is the molarity of this solution? ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers