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  • 06-05-2020
  • Chemistry
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What is the molarity of 10.0 g of NaCl dissolved in water to make 100. mL?

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muhammadssempijja707
muhammadssempijja707 muhammadssempijja707
  • 06-05-2020

Answer:

= 1.7 M

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 )

= 0.17 moles of NaCl

100mL = ( 100÷1000)L = 0.1L

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

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

=1.7 M

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