How many molecules are in 3.6 grams of nacl?

The number of molecules of 3.6 grams of NaCl is 3.6 x 10²² molecules.

The molecular mass of NaCl is calculated as follows;

NaCl = 23 + 35.5 = 58.5 g/mol

The number of moles of 3.6 grams of NaCl is calculated as follows;

The number of molecules present in 0.0598 mole of NaCl is calculated as;

1 mole --------------- 6.02 x 10²³ molecules

0.0598 mole ------------------ ?

number of molecules = 0.0598 x 6.02 x 10²³

number of molecules = 3.6 x 10²² molecules

Thus, the number of molecules of 3.6 grams of NaCl is 3.6 x 10²² molecules.

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Explanation:

There are no molecules in NaCl, because it consists only of ions.

However, we can calculate the number of formula units (FU) of NaCl.

Step 1. Calculate the moles of NaCl

Step 2. Convert moles to formula units

There are in 3.6 g of NaCl.