Question

The concentration of a 100 ml solution containing x grams of na2co3 is ym .the values of x and y are

Answer 1

x is the actual mass of Na2CO3 contained in the solution (100ml)

y refers to the molarity of the solution

y is the number of moles of Na2CO3 that can be contained in 1000ml (1 litre) of the solution.

To get y, we divide x by molar mass of Na2CO3 then multiply by volume in litres.

Volume in litres = 100/1000 = 10 L

Molar mass of Na2CO3 = 106 g/mol

so;

y = [x/106]/10 = x/1060

Answer 2

Answer:

Explanation:

x is the actual mass of Na2CO3 contained in the solution (100ml)

y refers to the molarity of the solution

y is the number of moles of Na2CO3 that can be contained in 1000ml (1 litre) of the solution.

To get y, we divide x by molar mass of Na2CO3 then multiply by volume in litres.

Volume in litres = 100/1000 = 10 L

Molar mass of Na2CO3 = 106 g/mol

so;

y = [x/106]/10 = x/1060