1. Calculate the mass of calcium chloride CaCl2 required to prepare 50.0ml of a solution with concentration (molarity) 0.425M

 

2. Determine the final concentration if 125mL of 0.425 M calcium chloride solution is diluted to a final volume of 500.0mL

1. Calculate molar mass with steps of calcium phosphate Ca3(PO4)

2. Calculate number of moles present in 268g of calcium phosphate

3. Calculate the number of calcium atoms present in 0.658 mol of calcium phosphate

4. Calculate mass of calcium chloride CaCl2 required to prepare 50.0ml of solution with concentration 0.425M.

5. Determine the final concentration if 125ML of 0.425m of calcium chloride solution is diluted to a final volume of 500.0ml

Determine the final concentration if 125mL of 0.400 M barium chloride (baCl2) solution is diluted to a final volume of 500ml

1. Calculate the theoretical yield of the solid precipitate if we react 2.50 g of K₂CO₃ and 2.00 g CaCl₂.

The molar masses of K₂CO₃, CaCl₂, and CaCO₃ are 138.21, 110.98, and 100.09 g.

2. Calculate the percent yield of the solid precipitate. The actual yield of the reaction is 1.60 g.

3. Based on the actual yield, calculate the mass of calcium present in the original solution. 

4. Determine the experimental concentration, %(w/v), of calcium chloride in the solution using the experimental yield of the reaction. Note that the solution has a volume of 50 mL.

5. Calculate the theoretical concentration of calcium chloride. 

6. Calculate the percent error between the theoretical and actual percent concentrations of calcium chloride in the solution.