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Topic: solutions  (Read 3289 times)

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tanya

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solutions
« on: February 19, 2006, 04:34:24 PM »
how can I find out how many grams of BaCl2 are needed to make 100mL of a 1.5M solution?
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Offline Donaldson Tan

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Re:solutions
« Reply #1 on: February 19, 2006, 04:57:20 PM »
how many moles of BaCl2 are there in 100ml of 1.5M solution

1M = 1 mole/dm3 = 1 mole/Litre
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Offline madscientist

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Re:solutions
« Reply #2 on: February 20, 2006, 09:23:38 AM »
Once you have calculated haw many moles of BaCl2 there are convert to mass:

mass <=====> moles conversion

moles to mass:

Moles * (molar mass) = grams

mass to moles:

grams * (1/molar mass)= moles
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