Please help n let me know thank u

When a septic tank backs up a goes in to clean it out

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159

What mass of glucose is produced when 54g of water react with carbon dioxide