Given the reaction:
nh3 + hcl --> nh4cl
in this reaction, ammonia molecules (nh3) act as a base because they
(1) accept hydrogen ions (h+)
(2) accept hydroxide ions (oh-)
(3) donate hydrogen ions (h+)
(4) donate hydroxide ions (oh-)

Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car

The movement of tectonic plates and in two locations is described below: location a: tectonic played push together location b: tectonic plates push apart