How many moles of H2 are needed to react with 0.90 mol of N2?

Which of these conditions most likely produces an unstable isotope?

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .

One student said that the investigation was not valid (a fair test). write a plan for the investigation that includes improvements to the method and apparatus