Question

I will mark brainlist please help

1) what is the number of moles of solute in 650 mL of a 0.40M solution?

• 3.5 M

• 0.26 M

• 0.15 M

• 6M

Answer 1

M=vc

V=680ml=0.65l

C=0.4

N=vc

N=0.65×0.4

=0.26m