Question

What is the mass of sodium (Na) in 50 grams of table salt (NaCl)? Show your work.

Answer 1

The amount of sodium in this sample = 32.4 grams

Step-by-step explanation:

Mass of Sodium = 23 g/mol

Mass of Chlorine = 35.5 g/mol

Mass of NaCl = 35.5 g/mol

Fraction of Na in NaCl =
`(23)/(35.5)`

=0.648

We are given a sample of 50 grams of sodium chloride.

The amount of sodium in this sample =
`Amount of sodium in 1 gram sample * weight of sample`

The amount of sodium in this sample =
`0.648 * 50`

The amount of sodium in this sample = 32.4 grams