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25 December, 22:11

What is the molarity when 2.3 g of NaCl is dissolved into 250 ml H2O

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  1. 25 December, 22:24
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    You can find the number of mol in 2.3g of NaCl molar mass (58.4g/mol) which gives you 0.039 mol. Then you can convert 250 ml into L which gives you 0,250L. Now you simply put it in the formula (b = m (NaCl) / V (H2O)) it gives you b=0.039/0.250 = 0.158 mol/L.
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