How grams of NACL are present in a 250-g solution containing 9% NACL?

(9x250)/100=22.5g of NaCl

To find out how many grams of NaCl are present in a 250-g solution containing 9% NaCl, we need to calculate the mass of NaCl in the solution.

First, we convert the percentage to a decimal by dividing it by 100:
9% = 9/100 = 0.09

Next, we multiply the decimal by the mass of the solution:
0.09 x 250 g = 22.5 g

Therefore, there are 22.5 grams of NaCl present in the 250-g solution containing 9% NaCl.