what is the molarity of Cl in a 100ml solution containing 20g NaCl, 10g CaCl2, and 15g KCl

Answer 1

You have to figure the moles of each salt in the solution:
moles=massSalt/molmassThatSale
then, the moles Cl ion will be
MolesNaCl+2MolesCaCl2 + molesKCl

then molartity Cl ion=totalmolesaboveCl/.1

Answer 2

thnx a bunch