Question

Determine the mass of each of the following:

a) 2.5 moles of NaCl (molar mass = 58.44 g/mol)

b) 0.75 moles of H2SO4 (molar mass = 98.08 g/mol)

c) 4 moles of CO2 (molar mass = 44.01 g/mol)

d) 1.2 moles of C6H12O6 (molar mass = 180.16 g/mol)

Answer 1

The mass is calculated by multiplying the number of moles of a substance by its molar mass. The results are 146.1 g of NaCl, 73.56 g of H2SO4, 176.04 g of CO2, and 216.19 g of C6H12O6.

Step-by-step explanation:

To determine the mass of each substance in question, we need to calculate the product of the number of moles given for each substance and its respective molar mass.

• a) For 2.5 moles of NaCl, the mass is: 2.5 moles × 58.44 g/mol = 146.1 g
• b) For 0.75 moles of H2SO4, the mass is: 0.75 moles × 98.08 g/mol = 73.56 g
• c) For 4 moles of CO2, the mass is: 4 moles × 44.01 g/mol = 176.04 g
• d) For 1.2 moles of C6H12O6, the mass is: 1.2 moles × 180.16 g/mol = 216.19 g