Question

Balance the chemical equation. Based on the equation, how many grams of chlorine are produced when the sodium chloride decomposes and produces 19.5 grams of sodium? Use the periodic table to get the weights of the elements.

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Answer 1

Answer:

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Explanation:

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Answer 2

The balance chemical equation is as,

$2NaCl$ → $2Na + Cl_{2}$

The 30.1 grams of chlorine are produced when the sodium chloride decomposes and produces 19.5 grams of sodium.

Calculation,

22.99 g of sodium present in 1 mole of sodium atom.

In 19.5 g  of sodium = 19.5 g× 1 mole / 22.99 g = 0.85 mole

The mole ratio = 2:1

It means 2 mole of sodium produce along with  1 mole of chlorine when sodium chloride decomposed.

So, number of mole of chlorine when 0.84 mole of sodium produce =  0.85 mole×1 mole/ 2 mole = 0.424 mole

number of mole of chlorine = given mass/molar mass of $Cl_{2}$ = 0.424

Given mass of $Cl_{2}$ = molar mass  of $Cl_{2}$×  number of moles of $Cl_{2}$ = 70.9×0.424 = 30.1 gram

What is balanced chemical equation?

The symbolic representation in which number of atoms in reactant side is equal to number of atoms in product side.

learn about balance chemical equation,

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