What mass of carbon monoxide is needed to react with 480kg of iron oxide

Explanation:

First off, you need to find the number of moles of iron oxide (Fe2O3) present in 480kg. The equation is mol = mass (g) / Mr

- you're given the mass of Fe2O3 in kg, so just need to covert to g; = 480 x 1000 = 480,000g

- Mr of Fe2O3 is found by adding all relative atomic masses from the Periodic Table;

2 x Fe = 2 x 56 = 112

3 x O = 3 x 16 = 48, therefore Mr of Fe2O3 = 112 + 48 = 160

- now divide the mass by the Mr to find mol Fe2O3 = 480,000 / 160 = 3000 mol

You know from the equation that 3 x CO reacts with Fe2O3, so you multiply number of Fe2O3 mol x 3 = 9000 mol

Now you need to find mass of CO; based on the formula mol = mass (g) / Mr, you can rearrange this to make mass the subject; mass (g) = mol x Mr

Mr of CO = 12 + 16 = 28

Therefore mass CO (g) = 9000 x 28 = 252,000g (or 252kg).

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.