Question

Convert 652 g Sn(CO₃)2 to moles of Sn(CO₃)2. (mm = 238.73 g/mol)

a) 2.728
b) 5.764
c) 6.129
d) 8.625

Answer 1

To find the number of moles of Sn(CO₃)₂ from 652 g, divide the mass by its molar mass, resulting in 2.73 moles, which is option (a) 2.728.

Step-by-step explanation:

To convert 652 g of Sn(CO₃)₂ to moles, you divide the mass of the sample by the molar mass of the compound. Given the molar mass (mm) of Sn(CO₃)₂ is 238.73 g/mol, the calculation is as follows:

Number of moles = mass (g) / molar mass (g/mol) = 652 g / 238.73 g/mol = 2.73 moles (rounded to three decimal places)

Therefore, the answer is (a) 2.728 moles of Sn(CO₃)₂.