Question

How many moles of sodium chloride are present in 20grams of the substance​

Answer 1

Answer:

2.058×10^23

Explanation:

molecular mass NaCl=58.5g

58.5g NaCl------->6.022×10^23 molecules of NaCl

20g NaCl------->20×6.022×10^23/58.5 molecules of NaCl

=2.058×10^23 molecules of NaCl