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19. Calculation of concentrations PrepaTec CCM (ENGLISH)

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19. Calculation of concentrations PrepaTec CCM (ENGLISH)

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Perform the corresponding calculations for the following concentration problems and choose the correct result.

Originally authored by the Isabel Coria. Last revision by Lukas Heins July 2025

Created by

Lukas Ronald Heins
Lukas Ronald Heins
Mexico
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19. Calculation of concentrations (ENGLISH)

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19. Calculation of concentrations PrepaTec CCM (ENGLISH)
 

19. Calculation of concentrations PrepaTec CCM (ENGLISH)Online version

Perform the corresponding calculations for the following concentration problems and choose the correct result. Originally authored by the Isabel Coria. Last revision by Lukas Heins July 2025

by Lukas Ronald Heins
1

You want to prepare 75 g of a 0.9% m/m saline solution to perform a nasal wash on a person suffering from allergic rhinitis. How many grams of sodium chloride (NaCl) are needed to prepare this solution?

2

To make a soap, it is required to prepare 100 mL of a 0.5 M sodium hydroxide (NaOH) solution. How many g of NaOH are required to prepare such a solution? NaOH = 40 g/mol

3

A 700 g sample of water contains 3.5 mg of arsenic. Calculate the parts per million of arsenic in the sample.

4

We want to calculate the amount in pounds (lb) of glucose that 940 g of a 4.5% m / m solution contain.

 
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