How many moles are present in 45.0 g of lithium oxide (li2o)?

Can someone check my work 98 5.05 acids and bases for this assignment you will be comparing acids and bases. the chart below will you organize the information needed: acids bases chemical properties (2) deodorant detergent vinger dish soap physical properties (2) orange juice toilet cleaner drain cleaner window cleaner ph level acid ph goes from 0-4 bases ph goes from 10-14 examples around you (2) vinger coffee lemon juice dark chocolate

How many moles are in 1.26*10^24 particles in significant figures

The compound formed from 2 atoms of hydrogen and one atom of oxygen is