2178015 2178015
  • 08-05-2021
  • Chemistry
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how many grams of CaCl2 are required to make 25mL of 1.5

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ajeigbeibraheem
ajeigbeibraheem ajeigbeibraheem
  • 13-05-2021

Answer:

Mass of CaCl2 = 4.1625 grams

Explanation:

We will recall that:

For solution: Molarity = [tex]\dfrac{moles \ of \ solute }{volume \ of \ solution (L)}[/tex]

[tex]1.5 = \dfrac{moles}{0.025 }[/tex]

Moles = 0.0375 moles

Mass = no of moles × molar mass(MM)

Molar mass of CaCl2 = 111 g/mol

Mass = 0.0375 mol × 111 g/mol

Mass of CaCl2 = 4.1625 grams

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