aluhre aluhre
  • 08-04-2016
  • Chemistry
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how much potassium bromide, in grams, should be added to water to prepare 0.50 of solution with molarity of 0.125M?

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Willchemistry
Willchemistry Willchemistry
  • 09-04-2016
Volume = 0.50 L

Molar mass  KBr = 119.002 g/mol

Molarity = 0.125 M

Mass ( KBr) = ?

 mass = molarity * molar mass * volume

mass = 0.125 * 119.002 * 0.50

mass = 7.437625 g of KBr

hope this helps!
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