Question

Calculate the mass of glucose and mass of water required to make 200g of a 25% solution of glucose respectively.

Answer 1

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Answer 2

The mass of glucose and mass of water required to make 200g of a 25% solution of glucose are 50 g and 150 g respectively.

Explanation:

To calculate the mass percentage ,we use the formula:

$\text{mass percent}=\frac{\text{mass of solute}}{\text{ of solute+ of solvent}}\times 100$

mass of solute (glucose)

mass of solvent (water)

Mass of solution =  mass of solute (glucose) + mass of solvent (water) = 200 g

$\text{mass percent}=25\%$

$25=\frac{\text{mass of glucose}}{200g}\times 100$

${\text{mass of glucose}}=50g$

mass of water = 200 g - 50 g = 150 g

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