How many moles of molecules are contained in 232 g of SiO₂?

Question

Quizplus · Accepted Answer

To determine the number of moles of molecules, we first need to find the molar mass of the compound SiO₂. Molar mass of Si = 28.0855 g/mol Molar mass of O = 15.9994 g/mol Molar mass of S = 32.066 g/mol Molar mass of B = 10.81 g/mol Total molar mass = (28.0855 x 1) + (15.9994 x 2) + (32.066 x 2) + (10.81 x 12) = 580.68 g/mol Now, we can use the formula: moles = mass / molar mass moles = 232 g / 580.68 g/mol = 0.3995 mol Therefore, the answer is approximately 0.40 mol, which is closest to option B: 3.86 mol.

How Many Moles of Molecules Are Contained in 232 G