Question

A solution contains 5g of sodium chloride is dissolved in 250 ml of water the concentration of the solution gram per 100ml is​

Answer 1

Answer:

Question 1. What is the weight/volume percentage concentration of 250 mL of aqueous sodium chloride solution containing 5 g NaCl?

   Write the equation used to calculate the weight/volume (%) :

       weight/volume (%) = (mass solute ÷ volume of solution) × 100

   Identify the solute:

       solute = sodium chloride = NaCl

   Extract the data from the question:

       mass solute (NaCl) = 5 g

       volume of solution = 250 mL

   Substitute the values into the equation and solve:

       w/v (%) = (5g ÷ 250 mL) × 100 = 2g/100mL (%)

Answer 2

Answer:

2 g/100ml

Explanation:

w/v%= wt. of solute /volume of solvent( in lit.)

        =(5/250)×1000

         = 20 g/lit.

in 1 lit.(1000 ml)     20

in 1 ml                   20/1000

in 100 ml            (20/1000) ×100=2g/100ml

                                               

  I hope it help's you.