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24 g of Magnesium reacts with 16 g of Oxygen to produce 40 g of magnesium oxide. What mass of magnesium would you need to produce 10 g of magnesium oxide?

There are two ways to work this out, one is a lot simpler than the other, I will post the simpler method here. The relative formula mass of magnesium oxide, MgO (40), is just a sum of the mass of magnesium (...
JH
Answered by Joshua H. • Chemistry tutor
77582 Views

0.250 g of a hydrocarbon known to contain carbon, hydrogen and oxygen was subject to complete combustion and produced 0.3664 g of CO2 and 0.1500 g of H2O. What is the empirical formula of this hydrocarbon?

The first step here is to determine the mass of C in CO 2 and the mass of H in H 2 O. This is done by dividing the relative atomic mass, Mr, by the relative molecular mass of the compound, M CO2 or M H2O , a...
JH
Answered by Joshua H. • Chemistry tutor
14022 Views

1.5 g of hydrocarbon undergoes complete combustion to give 4.4 g of CO2 and 2.7 g of H2O. Given this data, what is the empirical formula of this hydrocarbon?

The first step here is to determine the mass of C in CO 2 and the mass of H in H 2 O. This is done by dividing the atomic mass by the molecular mass and then multiplying by the mass of compound produced. For...
JH
Answered by Joshua H. • Chemistry tutor
88386 Views

In reaction kinetics, what parameters affect the rate of the reaction?

The rate of a reaction is affected by the concentration of the reactants, the action of a catalyst and the temperature. If we change the concentration of the reactantants, the reaction rate is going to chang...
DK
3807 Views

Give an example of a strong acid.

Hydrochloric acid is an example of a strong acid because it is completely ionised in water.
MK
Answered by Maria K. • Chemistry tutor
5131 Views