If a student mixes 75 ml of 1.30 m hno3 and 150 ml of 6.5 m naoh. is the final solution acidic, basic, or neutral

The solution is basic.

Explanation:

We can determine the nature of the solution via determining which has the large no. of millimoles (acid or base):

no. of millimoles of acid (HNO₃) = MV = (1.3 M)(75.0 mL) = 97.5 mmol.

no. of millimoles of base (NaOH) = MV = (6.5 M)(150.0 mL) = 975.0 mmol.

∴ The no. of millimoles of base (NaOH) is larger by 10 times than the acid (HNO₃).

So, the solution is: basic.

it means there are 3 atoms of oxygen

i think its 100.

hope this !