December 04, 2020, 03:45:26 PM
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Topic: Calculation of molar concentration  (Read 296 times)

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Offline cyk78

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Calculation of molar concentration
« on: November 07, 2020, 12:42:34 PM »
Can anyone help me to solve the problem?
Calculate the molar concentration of 8.45 ± 0.04 mL ammonia solution with a density of 0.2517 ± 0.0046 g/mL which was diluted to 0.5000 ± 0.0002L

Offline chenbeier

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Re: Calculation of molar concentration
« Reply #1 on: November 07, 2020, 12:59:44 PM »
Not Impossible , because percentage or concentration of the given solution missing.

Offline mjc123

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Re: Calculation of molar concentration
« Reply #2 on: November 07, 2020, 03:30:01 PM »
You could compare the density with tables of density vs. concentration, e.g. https://wissen.science-and-fun.de/chemistry/chemistry/density-tables/density-of-ammonia/. Unfortunately, no aqueous ammonia solution has a density of 0.2517 g/mL, so there must be a mistake in the question. (Should that be an ammonia concentration of 0.2517 g/mL?)

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