The volume of a sphere is 40 cubic in. a similer sphere has a volume of 5 cubic in. how much smaller is the surface area of the 2nd sphere?

I am pretty sure that this question belongs in the maths section not the geography section.

Anyways, the answer is simply to find.
First make sure the units are the same.
Secondly, subtract the first sphere number by the second.
The answer is 35 cubic in.

Hope I helped!!! :)

Well the units of M, molarity, is moles/L

you have 0.340 M which means 0.340 M/1L

you have 150mL which is 0.150L

so if you solve 0.340/1 = x/0.150 math proportion you will get your moles