What will be the ph when 50.0 ml of 2.00m carbonic acid is mixed with 20.0 ml of 3.00 m sodium bicarbonate? the ka of carbonic is 4.30 x 10-7
for the above buffer system, what will be the ph when (a) 15.0 ml of 0.500 m hcl and (b) when 15.0 ml of 0.750 m nach is added?

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

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