Asked by Camilo
A solution is 3.00M NaCl. The solution density is 1.05 g/mL. Calculate the molality?
Answers
Answered by
DrBob222
3 M means 3 mols/L of solution which is 3*molar ,mass NaCl = approx 175 g NaCl/L solution
mass of the 1L = 1000 mL x 1.05 g/mL = 1050g solution - 175 = appox 875 g H2O or 0.875 kg.
m = mols/kg solvent = about 175/0.875 = ?
You need to work the problem with more accuracy than I've done.
mass of the 1L = 1000 mL x 1.05 g/mL = 1050g solution - 175 = appox 875 g H2O or 0.875 kg.
m = mols/kg solvent = about 175/0.875 = ?
You need to work the problem with more accuracy than I've done.
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