Calculate the % of calcium carbonate in a mixture of calcium carbonate, sodium carbonate and magnesium sulfate if we obtained 1.73g of calcium carbonate and 2.34g of sodium carbonate and 1.93g of magnesium sulfate

Explanation:

Given parameters:

Mass of calcium carbonate = 1.73g

Mass of sodium carbonate = 2.34g

Mass of magnesium sulfate = 1.93g

Unknown:

Percentage of calcium carbonate in the mixture

Solution:

The mixture consists of :

   calcium carbonate + sodium carbonate + magnesium sulfate:

To find the percentage of calcium carbonate, we must first find the mass of the mixture by summing the masses of the different compounds that makes up the mixture:

            Mass of the mixture = 1.73 + 2.34 + 1.93 = 6.00g

Therefore,

percentage of calcium carbonate = x 100

Percentage of calcium carbonate = x 100 = 28.83%

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).

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