What is the molarity of a solution made by dissolving 100.00 grams of sodium chromate in 5.00 Liters of solution?

First of all we need no. of moles of 100g sodium chromate

Molar mass of sodium chromate = 161.97g/mol

No of mole = mass in gram/molar

=100/161.97

= 0.617mol

Now to find molarity apply formula

Molarity = moles of solvent/solution in liter

= 0.617/5

=0.1234M solution of sodium chromate