A 7.83 g sample of NaCl is dissolved in 90.00 mL of ethyl alcohol solution. How do you calculate the molar concentration of the solution?

1 Answer
anor277
Jan 18, 2016

#"Molarity"# #=# #"Moles of solute"/"Volume of solution"#

Explanation:

I suspect that your figures are wrong (please, I do realize that anyone can make a mistake; I know because I make plenty). Sodium chloride does not display much alcoholic solubility. Are you sure that the question specified ethanol not water?

If the solvent were ethanol,

#"Molarity"=(7.83*cancelg)/(58.44*cancelg*mol^-1)xx1/(0.0900*L)=??mol*L^-1#

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