Answer:
36 g/L is the final concentration of salt in the solution.
Explanation:
Concentration of solution-1 = 15.0 g/L
Volume of solution-1 = 250 mL = 0.250 L ( 1mL = 0.001 L)
Amount of salt in 250 mL of solution-1: [tex]15.0 g/L\times 0.250 L=3.75 g[/tex]
Concentration of solution-2 = 6.0%
This means that 6 grams of salt is present in 100 mL of solution.
Volume of solution-2 = 220 mL = 0.220 L ( 1mL = 0.001 L)
Amount of salt in 220 mL of solution-2: [tex]\frac{6}{100}\times 220 g=13.2 g[/tex]
On mixing the solutions = 3.75 g + 13.2 g = 16.95
Total volume solution after mixing = 0.250 L + 0.220 L = 0.270 L
The final concentration of salt in the solution:
[tex]=\frac{16.95 g}{0.270 L}=36.06 g/L \approx 36[/tex]
36 g/L is the final concentration of salt in the solution.
