Question

If we start with sodium thiosulphate with a concentration of 40 g/dm3, which combination below would give a concentration of concentration 16 g/dm3?

a) 20cm3 sodium thiosulphate + 30 cm3 water
b) 30cm3 sodium thiosulphate + 20 cm3 water
c) 40cm3 sodium thiosulphate + 10 cm3 water
d) 50cm3 sodium thiosulphate + no water

Answer 1

Explanation:

The concentration of the reactant plays an important role in the rate of a reaction. As the concentration of the reactant increases, the number of reacting molecules increases. Because of the increase in the number of molecules, the number of collisions also increases as a result the rate of the reaction increases.

Answer 2

Answer:

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