Question

2. If 1.204 X 1024 atoms of sodium is 20% of the total sodium atoms in sodium

chloride NaCl), how many grams of salt do you have ?

Answer 1

584.2 g

Step-by-step explanation:

Hello there!

In this case, since we know the 20% of the atoms correspond to sodium, we can compute the total atoms as shown below:

`(1.204 x10^(24))/(0.2)=6.02x10^(24)atoms`

Which are also equal to 1 mol and the Avogadro's number of sodium chloride with a molar mass of 58.44 g/mol; thus, the grams of salt turn out to be:

`6.02x10^(24)atoms*(1mol)/(6.022x10^(23)atoms) *(58.44g)/(1mol)\\\\=584.2g`

Best regards!