Question

How many moles of NaCl are in 2.00mL of 1.00M NaCl?

Answer 1

mols = M x L

Answer 2

Quantitatively
molarity=moles/dm^3
but 1dm^3=1000ml thus
1mol=>1000ml
?mol=>2ml
by crossmultiplication we got 0.002mol

Answer 3

It looks easier to me to 1.00M x 0.002 L = ? mols.