Answer to Question #186983 in General Chemistry for xenono

Question #186983

What is the concentration of a 450 mL solution made by dissolving 25 grams of NaCl in to water?


1
Expert's answer
2021-04-30T04:51:26-0400

Quantity of NaCl =25 gm


Moles of NaCl="\\dfrac{weight}{molar mass}=\\dfrac{25}{58.44}=0.42 moles"


Now:


Concentration="\\dfrac{moles}{volume(ml)}\\times1000"


"=\\dfrac{0.42}{450}\\times1000=0.934" moles per ml


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