#100 ml# of #H_2SO_4 #solution having molarity #1 M# and density #"1.5 g/ml"# is mixed with #400 ml# of water. Calculate final molarity of #H_2SO_4# solution, if final density is #"1.25 g/ml"#?
1 Answer
Sep 23, 2017
Explanation:
volumes of different solutions are not additive, so 100 mL of sulfuric acid and 400 mL of water don't make 500 mL of solution but less.
in sp8ite of this you have 150 g of acid 1M + 400 g of water= 550 g of material and a final density of 1,25 g/mL then you have
At the beginning you have
of acid. In the final solution, you have the same amount then Molarity is
pay attention: the utilizzed numbers are not real, but they are used only for this exercise