Calculate the molality of a solution containing 14.3 g of nacl in 42.2 g of water. a. 2.45 ï´ 10â4 m b. 5.80 ï´ 10â4 m c. 2.45 ï´ 10â1 m d. 103 m e. 5.80 m

 e) 5.80 m

Explanation:

Molality : It is defined as the number of moles of solute present per kg of solvent

Formula used :

where,

n= moles of solute

To calculate the moles, we use the equation:

= weight of solvent in g= 42.2 g

Now put all the given values in the formula of molarity, we get

Therefore, the molality of solution will be 5.80 m

the correct answer is:

a. formation of precipitation