Find the pH of the 0.169 M NaOH solution in problem 4 (assume that the NaOH dissociates completely into Na and OH- ) and its associated absolute uncertainty by propagating the uncertainty in concentration found in part b of the problem.

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

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 ) .

How many grams of ammonia would be produced by the decomposition of 16.93 mlof hydrazine? (the density of hydrazine is 1.021g/ml)