Question

What is the mass percent of sodium chloride (NaCl) in a solution that is made by dissolving 2.35g of NaCl in 7.45 g of water

Answer 1

Answer:

Given :2.35g and 7.45g

Required :the solution

Equation :?

solution :2.35+7.45=23.87

2.35÷9.8=0.2397×100=23.97

Explanation :

Formula :mass percent =solute / solute + solvent × 100

do this first then divide the solute to the answer of the solute + solvent

Here, solvent =2.35, solute =9.87

hope it will hlps u

Answer 2

Given - Mass of NaCl : 2.35 gram

Mass of water : 7.45 gram

Find - Mass percent

Solution - Mass percentage of the sodium chloride in solution can be calculated by the formula = mass of solute/mass of solution * 100.

Here mass of solution refers to sum of mass of solute and mass of solvent.

Thus, mass of solute is 2.35 gram.

Mass of solution = 2.35 + 7.45

Mass of solution = 9.8 gram

Now, keeping the values in formula to find mass percentage = 2.35/9.8

Mass percentage = 0.24

Heence, mass percentage of sodium chloride in solution is 0.24