Question

92 grams of ethanol,C2H5OH, is dissolved in 1 liter of solution. Determine the molarity (M)

Answer 1

Answer: 1.997 M

Step-by-step explanation:

molarity = moles of solute/liters of solution or
`M = (mol)/(L)`

first we have to find our moles of solute (mol), which you can find by dividing the mass of solute by molar mass of solute

mass of solute: 92 g

molar mass of solute: 46.08 g/mol

let's plug it in:

`(92 g)/(46.08 g/mol) = 1.997 mol`

next, we plug it into our original equation:

`(1.997mol)/(1 L) = 1.997 M`