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# Quick Question. Watch

1. How much Sodium Chloride would I need to prepare a 10ml of a 1.0M Sodium Chloride sample?

Thanks
2. (Original post by hollywoodbudgie)
How much Sodium Chloride would I need to prepare a 10ml of a 1.0M Sodium Chloride sample?

Thanks
I'm not going to tell you the answer but say that 10ml is one hundredth of 1dm3 (1 Litre)
To have 1 litre of a 1.0M solution you need 1 mole of whatever substance.
So calculate how much 1 mole of NaCl weighs. Divide that number by the fraction of a litre that you need. The result of that is the answer in grams.

3. (Original post by js374)
I'm not going to tell you the answer but say that 10ml is one hundredth of 1dm3 (1 Litre)
To have 1 litre of a 1.0M solution you need 1 mole of whatever substance.
So calculate how much 1 mole of NaCl weighs. Divide that number by the fraction of a litre that you need. The result of that is the answer in grams.

Na - 23.0
Cl – 35.5
1 mole of NaCl weighs 58.5

10ml = 1/100 of 1dm3

58.5/100 = 0.585g Is that right?
4. (Original post by hollywoodbudgie)
Na - 23.0
Cl – 35.5
1 mole of NaCl weighs 58.5

10ml = 1/100 of 1dm3

58.5/100 = 0.585g Is that right?
5. (Original post by js374)
Thanks!

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