Question

particles atoms 0.02×10²³ 1 mol calculate the number of moles in 36 grams of water (h₂o) molar mass h₂o: 18.015

Explanation:

Step1: Recall mole - mass formula

The formula to calculate the number of moles ($n$) is $n=\frac{m}{M}$, where $m$ is the mass of the substance and $M$ is the molar mass.

Step2: Identify given values

We are given that $m = 36\ g$ (mass of water) and $M=18.015\ g/mol$ (molar mass of water).

Step3: Calculate number of moles

$n=\frac{36\ g}{18.015\ g/mol}\approx 2\ mol$

Answer:

$2\ mol$