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Alexus [3.1K]
4 years ago
6

What is the molarity of 10.0 g of NaCl dissolved in water to make 100. mL?

Chemistry
1 answer:
tigry1 [53]4 years ago
5 0

Answer:

=<em><u> 1.7 M</u></em>

Explanation:

Molecular mass of NaCl = ( 23+35.5 ) = 58.5g

58.5g of NaCl are weighed by 1 mole of NaCl

10.0g of NaCl will be weighed by ( 10÷58.5 )

<em> <u>= 0.17 moles of </u><u>NaCl</u></em>

100mL = ( 100÷1000)L = 0.1L

0.1L of a solution is occupied by 0.17 moles of NaCl

<u>1L</u> of solution will be occupied by [(1÷0.1)×0.17]

=<em><u>1</u></em><em><u>.</u></em><em><u>7</u></em><em><u> </u></em><em><u>M</u></em>

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