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).

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?