Question

25 degree Celsius par Shudh Jal Ki molarta gyat kijiye

Answer 1

Molarity is basically the number of moles per unit volume of solution.

M=n/L........1

Density of water=1000g/L
it means there are 1000g of water in 1L.

so,
18g of water = 1 mol
1000g = x
by cross multiplication
x=55.55

1000g=55.55 moles

put in eq 1

M=55.55/1L
M=55.55