Calculate Mass Percent: HNO3 in Sample

In summary, mass percent is a unit of measurement used to express the amount of a particular substance in a mixture. It is calculated by dividing the mass of the substance by the total mass of the mixture and multiplying by 100. The formula for calculating mass percent is: mass of substance / total mass of mixture * 100 = mass percent. The purpose of calculating mass percent is to determine the concentration or amount of a substance in a mixture, which is useful in various scientific fields and industrial processes. Mass percent differs from other concentration units in that it is a relative measure based on the total mass of the mixture.
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Ki-nana18
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Homework Statement


A sample conaining both HCl and HNO3 had a density of 1.083g/ml. A 43.00 ml amount of this sample required 29.09 ml of 0.2828 M NaOH for titration. Another 43.00 ml amount of this sample required 7.88 ml of 0.1505 M AgNO3 for titration. Calculate the mass percent of HNO3 (molar mass = 63.018 g/mol) in the sample.


Homework Equations





The Attempt at a Solution


I know that you have to calculate the total number of mols of acid, but I'm not where to even start to do that.
 
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  • #2
Start with writing all reaction equations. Three of them.
 
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Related to Calculate Mass Percent: HNO3 in Sample

What is mass percent?

Mass percent is a unit of measurement used to express the amount of a particular substance in a mixture, often in relation to the total mass of the mixture. It is calculated by dividing the mass of the substance by the total mass of the mixture and multiplying by 100.

How do you calculate mass percent?

To calculate mass percent, you need to know the mass of the substance and the total mass of the mixture. Then, divide the mass of the substance by the total mass of the mixture and multiply by 100. The result will be the mass percent of the substance in the mixture.

What is the formula for calculating mass percent?

The formula for calculating mass percent is: mass of substance / total mass of mixture * 100 = mass percent

What is the purpose of calculating mass percent?

Calculating mass percent allows us to determine the concentration or amount of a particular substance in a mixture. This information is useful in various scientific fields, such as chemistry and biology, as well as in industrial processes and quality control.

How is mass percent different from other concentration units?

Mass percent is a relative measure of concentration, meaning it is expressed as a percentage of the total mass of the mixture. Other concentration units, such as molarity, are absolute measures and express the amount of a substance per unit volume or weight of the mixture. Additionally, mass percent takes into account the mass of the entire mixture, while other units may only consider the mass of the solvent or solute.

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