julie6456
julie6456 julie6456
  • 03-12-2019
  • Chemistry
contestada

Calculate the amount of CuSO4•5H2O required to make 25 mL of a 0.45 M solution of CuSO4.

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Neetoo
Neetoo Neetoo
  • 09-12-2019

Answer:

Mass = 1.76 g

Explanation:

Given data:

Volume of solution = 25 mL

Molarity = 0.45 M

Amount of CuSO₄.5H₂O = ?

Solution:

Molarity = number of moles / volume in litter

Number of moles = Molarity × Volume in L

Number of moles = 0.45 M  × 0.025 L

Number of moles = 0.011 mol

Mass of f CuSO₄.5H₂O:

Mass = Number of moles ×  molar mass

Mass = 0.011 mol × 159.6 g/mol

Mass = 1.76 g

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