40 liters of a solution containing 25% of nacl is mixed with 60 letters of a solution containing 30% of nacl . calculate the %of nacl in the new mixture
Answers
Answered by
2
Answer:
Mass of NaCl in 60 g of solution which contains 40% by mass of NaCl = 60×
100
40
=24g
Mass of NaCl in 100 g of solution which contains 15% by mass of NaCl = 100×
100
15
=15g
Total mass of NaCl contained in both solutions = 24 + 15 = 39 g
Total mass of both solutions = 60 + 100 = 160 g
Mass percent of NaCl in the final solution =
160
39
×100 = 24.375 % = 24.4 % (approximately)
Similar questions