To calculate the mass percent concentration of NaCl in the solution, you can use the formula:
Mass percent = (mass of solute / mass of solution) x 100%
In this case, the mass of NaCl (solute) is 5g and the mass of the solution is 100g.
So, plugging these values into the formula:
Mass percent = (5g / 100g) x 100% = 5%
Therefore, the mass percent concentration for 5g of NaCl in 100g of solution is 5%.
