Nitric acid (HNO 3 ) is used in the production of fertilisers. Calculate the maximum mass, in tonnes, of nitric acid that could be produced in this reaction
from 11.5 tonnes of nitrogen dioxide. [1 tonne = 1.0 × 10 6 g]
3NO 2 + H 2 O → 2HNO 3 + NO
PLEASE FAST I HAVE A TEST

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.

Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry