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BARSIC [14]
3 years ago
6

23g of sodium reacted with 35.5g of chlorine. Calculate the mass of the sodium chloride compound formed.

Chemistry
2 answers:
uysha [10]3 years ago
7 0
58.5 is the final mass of the compound as long as any gases the reaction causes to be
zalisa [80]3 years ago
6 0

<u>Answer:</u> The mass of sodium chloride formed will be 58.5 g

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}     .....(1)

  • <u>For Sodium:</u>

Given mass of sodium = 23 g

Molar mass of sodium = 23 g/mol

Putting values in equation 1, we get:

\text{Moles of sodium}=\frac{23g}{23g/mol}=1mol

  • <u>For chlorine gas:</u>

Given mass of chlorine gas = 35.5 g

Molar mass of chlorine gas = 71 g/mol

Putting values in equation 1, we get:

\text{Moles of chlorine gas}=\frac{35.5g}{71g/mol}=0.5mol

The chemical reaction for the formation of sodium chloride follows the equation:

2Na+Cl_2\rightarrow 2NaCl

By stoichiometry of the reaction:

2 moles of sodium reacts with 1 mole of chlorine gas.

So, 1 mole of sodium will react with = \frac{1}{2}\times 1=0.5mol of chlorine gas.

Thus, the formation of sodium chloride can be calculated by using any of the reactant.

By stoichiometry of the reaction:

2 moles of sodium produces 2 moles of sodium chloride.

So, 1 mole of sodium will react with = \frac{2}{2}\times 1=1mol of sodium chloride.

Now, calculating the mass of sodium chloride by using equation 1, we get:

Moles of sodium chloride = 1 mole

Molar mass of sodium chloride = 58.5 g/mol

Putting values in equation 1, we get:

1mol=\frac{\text{Mass of NaCl}}{58.5g/mol}\\\\\text{Mass of NaCl}=58.5g

Hence, the mass of sodium chloride formed will be 58.5 g

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