Question

What is the number of moles in 42 g of NaCl?
A. 0.61 mol NaCl
B. 1.8 mol NaCl
C. 0.72 mol NaCl
D. 1.2 mol NaCl

Answer 1

@abb0t can you help?

Answer 2

@jdoe0001

Answer 3

@Preetha

Answer 4

\(\sf \Huge moles=\dfrac{mass}{Molar~mass}\)

Answer 5

Would it be D @aaronq

Answer 6

whats the molar mass of NaCl?

Answer 7

C. 0.72 mol NaCl

Answer 8

moles=mass/Molar mass
=42/58.5
=0.72 mol