Calculate the number of moles of sodium carbonate presents in 100cm of 2m (Na2,Co3) solution

Answer 1

The molar mass of sodium carbonate is 105.99 g/mol.

100 cm x 2 m = 200 cm

200 cm x (1 L/1000 cm) = 0.2 L

0.2 L x (2 mol/L) = 0.4 mol

0.4 mol x (1 mole Na2CO3/2 mol) = 0.2 moles Na2CO3