Consider the titration of 105 ml of 1.45 m ethylamine, ch3ch2nh2 (kb = 5.6 x 10-4) with 0.25 m hcl. how many ml of hcl will need to be added to the ethylamine, ch3ch2nh2 solution to reach a ph of 10.75?

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."