Question

A
spoon of table salt, Nacl
contains 12.5g of this salt calculate the number of moles?​

Answer 1

Answer:

no of moles= mass given ÷ molar mass

molar mass os NaCl = 58.4

now

no of moles = 12.5÷ 58.4= 0.21

Answer 2

Answer:

0.215 moles

Explanation:

To find molar mass we need to add the atomic masses of Na and Cl

23+35 = 58 g

Number of moles = Given mass ÷ Molar mass

Number of moles = 12.5 grams ÷ 58 grams

Number of moles = 0.215