1)A solution is made of 838.6g of KCl with 8 moles of water. a. Find the molarity of the solution.(Density of KCl =1.05 g/mL) (Density of H2O= 1.0 g/mL)
b. Find the molality of the solution.
c. Find the mole fraction of KCl in the solution.
d. Find the mole fraction of H2O in the solution.
e. Find the mass percentage of KCl in the solution.
f. Find the mass percentage of H2O in the solution.

2) A solution is made of 173g of Pb(NO3)2 with 9.352moles of water.
a. Find the molarity of the solution.(Density of Pb(NO3)2=4.53g/mL) (Density of H2O= 1.0 g/mL)
b. Find the molality of the solution.
c. Find the mole fraction of Pb(NO3)2in the solution.
d. Find the mole fraction of H2O in the solution.
e. Find the mass percentage of Pb(NO3)2in the solution.
f. Find the mass percentage of H2O in the solution.

3) A solution is made of 63.5g of NaCl with 3.42moles of formamide (CH3NO).
a. Find the molarity of the solution.(Density of NaCl=1.202g/mL) (Density of CH3NO= 1.134 g/mL)
b. Find the molality of the solution.
c. Find the mole fraction of NaClin the solution.
d. Find the mole fraction of formamide in the solution.
e. Find the mass percentage of NaClin the solution.
f. Find the mass percentage of formamide in the solution.

4) A solution is made of 36.7g of NaOH with 9.352 moles of ethanol (C2H5OH).
a. Find the molarity of the solution (Density NaOH = 1.515 g/mL) (Density Ethanol = 0.789 g/mL).
b. Find the molality of the solution
c. Find the mole fraction of NaOH in the solution
d. Find the mole fraction of ethanol in the solution
e. Find the mass percentage of NaOH in the solution
f. Find the mass percentage of ethanol in the solution
g. Find the ppm of NaOH in the solution.