Describe how one would make a 100 mL solution of 0.1 M H2O2

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To prepare a 100 mL solution of 0.1 M H2O2, one needs to calculate the number of moles required, which is 0.01 moles. This translates to a mass of 0.34 grams of hydrogen peroxide, based on its molar mass of 34 g/mol. However, the discussion highlights that the specific concentration of the hydrogen peroxide solution available is crucial for accurately preparing the solution. Without knowing the concentration of the starting material, providing a precise recipe is challenging. The mass calculation is confirmed, but additional context on the source of H2O2 is necessary for complete guidance.
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Homework Statement


Describe how one would make a 100 mL solution of 0.1 M H2O2?

Homework Equations

The Attempt at a Solution


to get no. of moles = ml*M/1000
100*0.1/1000= 0.01 moles h202.

mass= 0.01*34= 0.34 g.

Correct?
 
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That's a correct mass of hydrogen peroxide, but that's not a recipe.

To be honest I don't see how to answer the question without knowing what you can use to prepare the solution. Commercially hydrogen peroxide is sold in may different form (solutions of different concentrations), not knowing which one will be used it is impossible to give an answer.
 
Borek said:
That's a correct mass of hydrogen peroxide, but that's not a recipe.

To be honest I don't see how to answer the question without knowing what you can use to prepare the solution. Commercially hydrogen peroxide is sold in may different form (solutions of different concentrations), not knowing which one will be used it is impossible to give an answer.
Thank you, My teacher gave us the recipe. i just wanted to check the mass number.
 
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