Answered

Welcome to Westonci.ca, where curiosity meets expertise. Ask any question and receive fast, accurate answers from our knowledgeable community. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

A stock solution is made by dissolving 66.05 g of (nh4)2so4 in enough water to make 250 ml of solution. a 10.0 ml sample of this solution is then diluted to 50.0 ml. given that the molar mass of (nh4)2so4 is 132.1 g/mol, what is the concentration of the new solution? use m subscript i v subscript i equals m subscript f v subscript f. and molarity equals startfraction moles of solute over liters of solution endfraction.. 0.400 m 1.60 m 5.00 m 10.0 m

Sagot :

Eduard22sly

The concentration of the new solution of the ammonium sulphate, (NH₄)₂SO₄ given the data is 0.4 M

How to determine the mole of (NH₄)₂SO₄

  • Mass of (NH₄)₂SO₄ = 66.05 g
  • Molar mass of (NH₄)₂SO₄ = 132.1 g/mol
  • Mole of (NH₄)₂SO₄ =?

Mole = mass / molar mass

Mole of (NH₄)₂SO₄ = 66.05 / 132.1

Mole of (NH₄)₂SO₄ = 0.5 mole

How to determine the molarity of (NH₄)₂SO₄

  • Mole of (NH₄)₂SO₄ = 0.5 mole
  • Volume = 250 mL = 250 / 1000 = 0.25 L
  • Molarity of (NH₄)₂SO₄ =?

Molarity = mole / Volume

Molarity of (NH₄)₂SO₄ = 0.5 / 0.25

Molarity of (NH₄)₂SO₄ = 2 M

How to determine the molarity of the diluted solution

  • Volume of stock solution (V₁) = 10 mL
  • Molarity of stock solution (M₁) = 2 M
  • Volume of diluted solution (V₂) = 50 mL
  • Molarity of diluted solution (M₂) =?

M₁V₁ = M₂V₂

2 × 10 = M₂ × 50

20 = V₂ × 50

Divide both side by 50

M₂ = 20 / 50

M₂ = 0.4 M

Learn more about dilution:

https://brainly.com/question/15022582

#SPJ4

Answer:

A: 0.400 M

Explanation:

We appreciate your visit. Hopefully, the answers you found were beneficial. Don't hesitate to come back for more information. We appreciate your time. Please come back anytime for the latest information and answers to your questions. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.