Question

What is the molarity of a solution containing 115g ethanol (C2H5OH) in 500cm3 of solution? MOLARITY

Answer 1

use the formula: \(M=\dfrac{n_{solute}}{L_{solution}}\)

where n=moles, M=molarity
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i'm sure you know how to find moles, if not, this is the formula:

\(n=\dfrac{m}{M}\)

where m= mass, n=moles, M=molar mass (same symbol as molarity, you have to know in what context you're using it).