# chemical + concentration

• ## Question on chemical equilibrium. Law of mass action.12-25

Hi. First of all, Ye shall not do my homework here! I do not quite understand here just a job and would appreciate a APPROACH. The task is: The equilibrium constant of the conversion reaction at 500 ° C has the value Kc =. 4 What is the concentration

• ## How do I calculate the H3O + concentration of caustic soda (NaOH) with 0.1 mol / L at a room temperature of 25 degrees Celsius. Is there a formula?02-28

--answer-- It is c (H₃O⁺) • c (OH⁻) = 10⁻¹⁴ Since c (OH⁻) is given, you can calculate the Oxoniumkonzentration in existing caustic soda. check out the times here at: http://www.chemienet.info/7-ph.html

• ## Chemistry, hydrochloric acid diluted in water; how to get to the pH?12-16

Hi Guys! :) After the holidays we write a chemical short-time work and our teacher gave us dealt a practice sheet, we can do during the holidays (it is voluntary). Although we have in front of short-time work still 2 times chemistry, but I'm pretty d

• ## Concentration calculation in esterification (attempt to ester equilibrium)02-11

Hello everybody. We just take in chemistry (Gym, EF) the subject esters equilibrium through and have to carried out an esterification equilibrium reaction. Experiment: 28.6 ml (0.5 mol) acetic acid, 29.2 ml (0.5 mol) of methanol, 0.5 ml of conc. Sulf