salvation and solution concentration dilution

Chemistry
Tutor: None Selected Time limit: 1 Day

If 15.34 g of copper ii sulfate pentahydrate is dissolved to create 250.0 mL of solution what is the molarity of this solution? 

May 29th, 2015

250mL*(1L/1000mL)*{(x mole)}= 0.250

moles of copper ii sulphate, 0.25*x moles=0.250

=1 mole

now;

15.34*(1/249.685)=mol of copper ii sulphate

=0.06143 moles

liters of solution*molarity=moles

molarity=0.06143/0.25

=0.24572 M

May 29th, 2015

where did you get 249.685

May 29th, 2015

it is the molar mass of copper ii sulphate

May 29th, 2015

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May 29th, 2015
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May 29th, 2015
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