Question

what is the molar mass of li₂o?

Explanation:

Step1: Find atomic masses

Li: $6.94\ g/mol$, O: $16.00\ g/mol$

Step2: Calculate molar mass

Molar mass of $\ce{Li2O}$ = $2\times6.94 + 16.00$
= $13.88 + 16.00$
= $29.88\ g/mol$

Answer:

The molar mass of $\ce{Li2O}$ is approximately $29.88\ g/mol$ (or can be rounded to $30.0\ g/mol$ depending on significant figures).