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The mass of the sugar in the 100 mL aliquot solution is 1369.2 g

How to determine the molarity of aliquot

  • Volume of stock solution (V₁) = 2 L
  • Molarity of stock solution (M₁) = 2 M
  • Volume of aliquot (V₂) = 100 mL = 100 / 1000 = 0.1 L
  • Molarity of aliquot (M₂) =?

The molarity of the aliquot can be obtained as follow:

M₁V₁ = M₂V₂

2 × 2 = M₂ × 0.1

4 = M₂ × 0.1

Divide both side by 0.1

M₂ = 4 / 0.1

M₂ = 40 M

How to determine the mole of sugar

  • Molarity of aliquot = 40 M
  • Volume = 100 mL = 100 / 1000 = 0.1 L
  • Mole of sucrose =?

Mole = Molarity x Volume

Mole of sucrose = 40 × 0.1

Mole of sucrose = 4 moles

How to determine the mass of sucrose

  • Mole of sucrose = 4 moles
  • Molar mass of sucrose = 342.3 g/mol
  • Mass of sucrose =?

Mass = mole × molar mass

Mass of sucrose = 4 × 342.3

Mass of sucrose = 1369.2 g

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