Which of the following would weigh the highest?
A. 0.2 mole of sucrose (C12H22O11):
Given: Number of moles = 0.2
Molar mass of C12H22O11 = 342 g/mol
To find out the mass of sucrose, apply the formula given:
⇒
⇒ Mass = 0.2 mol × 342g/mol
⇒ Mass = 68.4g
Thus, the mass of sucrose is 68.4 g.
B. 2 moles of CO2:
Given: Number of moles = 2
Molar mass of CO2 = 44 g/mol
To find out the mass of sucrose, apply the formula given:
⇒
⇒ Mass = 2 mol × 44g/mol
⇒ Mass = 88g
Thus, the mass of CO2 is 88 g.
C. 2 moles of CaCO3:
Given: Number of moles = 2
Molar mass of CaCO3 = 40 + 12 + 3× 16 = 100 g/mol
To find out the mass of sucrose, apply the formula given:
⇒
⇒ Mass = 2 mol × 100g/mol
⇒ Mass = 200g
Thus, the mass of CaCO3 is 200 g.
D. 10 moles of H2O:
Given: Number of moles = 10
Molar mass of H2O = 18 g/mol
To find out the mass of sucrose, apply the formula given:
⇒
⇒ Mass = 10 mol × 18g/mol
⇒ Mass = 180g
Thus, the mass of H2O is 180 g.
Hence, the option C is correct which has higher mass.