Question

5 An aqueous solution is 17.4 ppm of K 50,. Thus, molarity of K ion is
a. 0.348 M
b. 0.174 M
c. 2 x 10-4 M
d. 1x 10-4 M
An aqueous solution of NaOH is 400 hy weight of solution Thus, its molality is​

Answer 1

Explanation:

17.4 ppm means 17.4 mg/litre. So first convrt it into gm = 17.4 10^-3 gm/litre. Nw to find molarity =w(solute in gm)/mwt of solute solution in litre. So in k2so4 k+ it will brk as 2 K+ therefore molarity=2 10^-4 ans.