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Old Nov 23rd 2017, 02:16 PM   #1
Chem86579
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Check please

17.4 g of K2SO4 contain in 200 ml of the solution. Calculate the molar salt concentration in the solution.

Please check the decision
c=m/(M*ν)=17,4/(174*0,2)=5 mol/L
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Old Nov 23rd 2017, 06:32 PM   #2
oz93666
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Molecular weight of K2SO4 is 174 ....

so if 174 dissolved to make 1 liter , that would be a molarity of 1.

We are told 200ml contains 17.4 gm , so 1 liter will contain 87 gm

which is 0.5 mol/liter
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Old Dec 7th 2017, 03:05 PM   #3
Chem86579
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Originally Posted by oz93666 View Post
Molecular weight of K2SO4 is 174 ....

so if 174 dissolved to make 1 liter , that would be a molarity of 1.

We are told 200ml contains 17.4 gm , so 1 liter will contain 87 gm

which is 0.5 mol/liter
Thanks
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