Question

what is the molar mass of h₂co₃?
a. 62 g/mol
b. 30 g/mol
c. 61 g/mol
d. 29 g/mol

Explanation:

Step1: Identify atomic masses

The atomic mass of H is approximately 1 g/mol, C is approximately 12 g/mol, and O is approximately 16 g/mol.

Step2: Calculate molar mass of $H_2CO_3$

For $H_2CO_3$, there are 2 H atoms, 1 C atom and 3 O atoms. The molar mass $M$ is calculated as $M=(2\times1)+12+(3\times16)$.
$M = 2 + 12+48=62$ g/mol.

Answer:

A. 62 g/mol