Question

How many moles are there in 47.2 grams of nacl? [use formula weight of nacl: 58.441 g/mol]

A)89.5 mol
B)0.808 mol
C)1.09 mol
D)32.4 mol
E) None of the above

Answer 1

B)0.808 mol

Step-by-step explanation:

The formula for moles:

`moles = (mass)/(relative \: formula \: weight)`

`moles = (47.2)/(58.441) = 0.808(3dp)`