Answer:
you have a 3.17molal solution: This is 3.17mol CaCl2 dissolved in 1 litre of water. Make this solution.
Molar mass CaCl2 = 110.9848 g/mol
3.17mol = 3.17*110.9848 = 351.822g
Total mass = 1000g H2O + 351.822g CaCl2 = 1,351.822g
Volume of this solution:
Volume = mass / density
Volume = 1,351.822/1.24
Volume = 1,090.2 mL
You have 3.17mol CaCl2 dissolved in 1,090.2 mL solution
Mol CaCl2 dissolved in 1000mL solution = 1000/1090.2*3.17 = 2.91 mol CaCl2
Molarity of CaCl2 solution = 2.91M
Explanation:
