Ask Question
8 June, 01:20

A solution is made by dissolving 26.42g of (NH4) 2so4 in enough h2o to make 50.00ml of solution

What is the molarity of this solution?

+4
Answers (2)
  1. 8 June, 01:25
    0
    Moles of ammonium sulfate = 26.42/molar mass of (NH4) 2SO4

    = 26.42/132.14 = 0.19 mole.

    Molarity = moles of ammonium sulfate/volume of solution

    = 0.19/50x10^-3

    = 3.8M
  2. 8 June, 01:32
    0
    Molarity = moles of solute/liters of solution

    We first need to convert grams of ammonium sulfate to moles.

    To convert from grams to moles, we need to divide by it's molecular mass.

    26.42 g (NH₄) ₂SO₄ * (1 mole (NH₄) ₂SO₄ / 132.14 g (NH₄) ₂SO₄) = 0.1999 mole (NH₄) ₂SO₄

    0.1999 mol/0.05000L = 3.998 M

    Since there 4 significant digits in both the volume and mass, we are limited to 4 significant digits.

    Your final answer is 3.998 M (NH₄) ₂SO₄.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A solution is made by dissolving 26.42g of (NH4) 2so4 in enough h2o to make 50.00ml of solution 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