Answer to Question #169017 in General Chemistry for Sofia Mikaela s. Declao

Question #169017

. How many grams of KBr is needed to be dissolved to prepare 1.4L of 

  1.5x10-2M KBr?



1
Expert's answer
2021-03-05T03:31:07-0500

According to the neutralization law,

where,

 = molarity of KBr solution = 0.550 M

 = volume of KBr solution = ?

 = molarity of KBr = 2.50 M

 = volume of KBr = 100 ml

Now put all the given values in the above law, we get the volume of KBr solution.

Therefore, the volume of 0.550 M KBr solution you make from 100 ml of 2.50 M KBr is, 454.5 ml.

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