Calculate the mass of 3.4 moles of nitric acid (hno3)

There are 214.27 grams of HNO3 in 3.4 moles of HNO3.
63.02 g/mol.
= (63.02 g/mol) (3.4 mol HNO3 )
= 214.268 g.
= 214.27 g.
There are 214.27 grams of HNO3 in 3.4 moles of HNO3.

Yeah, but what are you trying to ask?

Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.