can someone help me please ... god will bless u if u help...it is very urgent... i only have 1hr to answer this question

Particles vibrate in a rigid structure and do not move relative to their neighbors.

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

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 ) .