You have 100 milliliters of a 0.50 M MgBr2 solution and dilute it to a total vol

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You have 100 milliliters of a 0.50 M MgBr2 solution and dilute it to a total volume of 200 milliliters. What is the molarity of the resulting solution?

Oct 16th, 2017

Thank you for the opportunity to help you with your question!

Number of moles of solute remain constant. 

Therefore, M1V1=M2V2 

M2=M1V1/V2=100*0.5/200=0.25 

Hence, Molarity of resulting solution is 0.25

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Jun 4th, 2015

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