What mass of HNO3 is needed to prepare 250mL of 0.22N solution?

I'm sure this is really simple but I don't know how to go about solving this..
Does it require a formula?
Pleasee help! ):

Question

What mass of HNO3 is needed to prepare 250mL of 0.22N solution?

I'm sure this is really simple but I don't know how to go about solving this..
Does it require a formula?
Pleasee help! ):

anonymous · Answer

First, what is the molecular weight of HNO3?

Next, molarity, M is moles per liter. Does that help? (I'm trying to work in hints.) :)

anonymous · Answer

Yeah i was abit confused as well seeing n?  So what eighthourlunch is trying to hint at is that your given the molarity. your given mL which u need to convert to Ls which is .250L and ur given .22 number of moles. So all it is is (.22mols/.250)* 63.01g which is the molar mass of HNO3. and you should get 55gs of HNO3

anonymous · Answer

Thankkk you so much!!!