Question

Calculate the no. of moles of methanol
in 5 L of its an solution , If the
density of solution is 0.961 kg/L
[Molar Mass of methanol = 32.0 g/mol]​

Answer 1

Answer:

n = 150.156 moles

Explanation:

Given, V = 5L, D = 0.961 kg/L

Density = Mass/Volume

Mass = Density × Volume

Mass = 0.961×5

Mass = 4.805 kg = 4805 g

No.of moles = Given mass/molar mass

n = 4805/32

n = 150.156 moles