Answer to Question #150065 in General Chemistry for Cam

Question

How many grams of CaO will be produced from the decomposition of 1.44 x 1023 molecules of CaCO3?

Answer 1

The balanced reaction equation:

CaCO₃ = CaO + CO₂

Avogadro constant: 6.022 * 10²³ mol^-1

The quantity of CaCO₃: 1.44 * 10²³ / (6.022 * 10²³ mol^-1) = 0.239 mol

The quantity of CaO is the same according to the equation.

The mass of CaO: 56.08 g/mol * 0.239 mol = 13.4 g

Answer: 13.4 g