Question

What is the number of moles in 42 g of NaCl?

A. 0.61 mol NaCl
B. 0.72 mol NaCl
C. 1.8 mol NaCl
D. 1.2 mol NaCl

Answer 1

@peybae98 what do you think the answer is can you show how you would find it?

Answer 2

\[n = \frac{ m }{ M }\] where M is the molar mass and m is the mass, the mass is given simply find the molar mass via periodic table.