What is molarity of pure water ?

Question

What is molarity of pure water ? (A) 18.36 M (B) 1.16 M (C) 55.56 M (D) 5.56 M

Tardigrade Admin · Accepted Answer

Density of water =1 g / cm 3 and its molecular weight =18 Therefore 1000 cm 3 of water will weigh 1000 g of water. We also know that molarity =( text Mass of water / text Molecular weight ) =(1000/18) =55.56 M

Q. What is molarity of pure water ?

$18.36 M$

$1.16 M$

$55.56 M$

$5.56 M$

Density of water $= 1 g / c m^{3}$ and its molecular weight $= 18$

Therefore $1000 c m^{3}$ of water will weigh $1000 g$ of water. We also know that molarity

$= \frac{Mass of water}{Molecular weight}$

$= \frac{1000}{18}$

$= 55.56 M$

Q. What is molarity of pure water ?

18.36M

1.16M

55.56M

5.56M

Density of water =1g/cm3 and its molecular weight =18 Therefore 1000cm3 of water will weigh 1000g of water. We also know that molarity = Molecular weight Mass of water ​ =181000​ =55.56M

$18.36 M$

$1.16 M$

$55.56 M$

$5.56 M$

Density of water $= 1 g / c m^{3}$ and its molecular weight $= 18$

Therefore $1000 c m^{3}$ of water will weigh $1000 g$ of water. We also know that molarity

$= \frac{Mass of water}{Molecular weight}$

$= \frac{1000}{18}$

$= 55.56 M$