First, calculate the molar mass of MgCl2:
Mg: 1 x 24.30 = 24.30
Cl: 2 x 35.45 = 70.9
24.30 + 70.9 = 95.2g/mol
Mole = Mass / Molar Mass
2.70 moles = Mass / 95.2 g/mol
Mass = 2.70 mol x 95.2 g/mol
Mass = 257.04g
Answer: The mass of magnesium chloride is 257.1 grams.
Explanation:
To calculate the mass of magnesium chloride for given number of moles, we use the equation:
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex]
We are given:
Moles of magnesium chloride = 2.70 moles
Molar mass of magnesium chloride = 95.21 g/mol
Putting values in above equation, we get:
[tex]2.70moles=\frac{\text{Mass of magnesium chloride}}{95.21g/mol}\\\\\text{Mass of magnesium chloride}=(2.70mol\times 95.21g/mol)=257.1g[/tex]
Hence, the mass of magnesium chloride is 257.1 grams.
