Question

1. Identify the solute and solvent in each solution composed of the following:

10.0 mL of acetic acid in 200 mL of water

100 mL of water and 5.0 g of sugar

What is the molarity of a solution made by dissolving 2.355 g of sulfuric acid (H2SO4) in water and diluting to a final volume of 50.0 mL?

What will happen to a red blood cell placed in a 10% (m/v) glucose solution? In 0.1% NaCl?

Answer 1

The component present in smaller quantity is called solute

The component present in larger quantity is called solvent

The mixture of solvent and solute is known as solution.10.0 mL of acetic acid in 200 mL of water

Acetic acid is present in less quantity and is solute

water is present in more quantity and is solvent

100 mL of water and 5.0 g of sugar

sugar is present in less quantity and is solute

water is present in more quantity and is solvent

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umber of moles of H₂SO₄ = mass/mol.wt.= 2.355 g/(98.08 g/mol) = 0.024011 mol

Volume of the solution = 50.0 mL = 0.050 L

Molarity of the solution = moles/volume = 0.024011 mol/0.05 L = 0.4802 M

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5 % of glucose solution is isotonic with red blood cells

0.9% of NaCl solution is isotonic with red blood cells

10% glucose solution is hypertonic with red blood cells. So, water moves from cell to glucose solution and thus cell Shrinks

0.1 % NaCl solution is hypotonic with red blood cells. So, water moves from solution to red blood cells and thus cell Swells.