Answer: 
75 g 
Step-by-step explanation: 
Step 1. Calculate the molar mass of CaCO₃ 
 Ca = 40.08 
 C = 12.01 
3O = 3 × 16.00 =  48.00 
 Total = 100.09 g/mol 
 
Step 2. Calculate the mass of the pellet 
Mass of CaCO₃ = 0.75 mol × (100.09 g/1 mol) 
Mass of CaCO₃ = 75 g