Answer:
1.094 M
1. Calculate the number of moles of CaCl₂
The molar mass of CaCl₂ (calcium chloride) can be calculated by summing the atomic masses of calcium (Ca) and chlorine (Cl)
- Calcium (Ca): 40.08 g/mol
- Chlorine (Cl): 35.45 g/mol (since there are two chlorine atoms, multiply this by 2)
Molar mass of CaCl₂ = 40.08 g/mol + (2 × 35.45 g/mol)
= 40.08 g/mol + 70.90 g/mol
= 110.98 g/mol
Next, calculate the number of moles of CaCl₂: Number of moles = Mass/Molar mass
= 612g / 110.98 g/mol
= 5.515 moles
2. Calculate the molarity of the solution
Molarity (M) is defined as the number of moles of solute per liter of solution.
Molarity = Number of moles / Volume of solution in liters
Given:
- Number of moles of CaCl₂ = 5.515 moles
- Volume of solution = 5.04 L
Molarity = 5.515 moles / 5.04 L
= 1.094 M
Therefore, the molarity of the CaCl₂ solution is approximately 1.094 M.