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Sergeeva-Olga [200]
3 years ago
15

Can someone help me with these?

Chemistry
1 answer:
kumpel [21]3 years ago
5 0
What is there, I don’t see anything ..
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How would you prepare 100 ml of 0.4 M MgSO4 from a stock solution of 2 M MgSO4?
miss Akunina [59]
OK, so to answer this question, you will simply use the molality equation which is as follows:
<span>M1V1 = M2V2 
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M1 = 2M
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</span>plug in the givens in the above equation:
<span>2 x V1 = 0.4 x 100 
</span>therefore:
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Based on this: you should take 20 ml of the 2 M solution and make volume exactly 100 ml in a volumetric flask by diluting in water.

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