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Andrew [12]
3 years ago
9

How many Na ions are in 2.7 g of NaCl? Answer in units of ions.

Chemistry
1 answer:
Viefleur [7K]3 years ago
3 0

Answer:

2.778 * 10^{22}

Explanation:

Weight of NaCl is equal to sum of weight of one mole of sodium and one mole of chloride.

Mathematically, it can be represented as -

1 mol (Na) + 1 mol (Cl) = 23.0  + 35.5  = 58.5 g/mol

In 58.5 gram of NaCl, there is one mole of Na or 6.02 * 10^{23} ions

In one gram of NaCl, there will be

\frac{6.02 * 10^{23}}{58.5} sodium ions

In 2.7 grams of  NaCl, the number of sodium ions will be -

\frac{6.02 * 10^{23}}{58.5} * 2.7

2.778 * 10^{22}

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