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Answer:

A bottle that contains 0.95 moles of hydrogen peroxide per liter of solution contains 32.31 g of hydrogen peroxide per liter of the solution.

Explanation:

First, recall that:

Molarity of a substance = no of moles of the substance/volume of the solution in liters.

In this case, the number of moles of hydrogen peroxide is 0.95 mole while the volume of the solution is one liter. Thus;

Molarity of hydrogen peroxide = 0.95/1 = 0.95 M.

Also recall that:

no of moles of a substance = mass of the substance/molar mass of the substance.

Thus;

mass of substance = no of moles x molar mass.

In this case, the no of moles of hydrogen peroxide is 0.95 while the molar mass is 34.01 g/mol. Hence;

mass of hydrogen peroxide = 0.95 x 34.01 = 32.31 g

Hence, a bottle that contains 0.95 moles of hydrogen peroxide per liter of solution contains 32.31 g of hydrogen peroxide per liter of the solution. The solution also has a hydrogen peroxide molarity of 0.95 M.

fichoh

The amount of hydrogen peroxide in the solution can be expressed in grams per Litre as 32.31 gram of hydrogen peroxide per Litre of the solution.

The amount of mole of hydrogen peroxide in the solution = 0.95 moles

The Molar mass of hydrogen peroxide = 34.0147 g/mol

The mass of hydrogen in the solution can be calculated thus :

  • Number of moles of hydrogen peroxide × Molar mass of hydrogen peroxide

  • Mass of hydrogen = 0.95 mol × 34.0147 g/mol = 32.314 g

Therefore, the bottle contains 31.314 g of hydrogen peroxide per Litre of the solution.

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