Question

CHEM 114 ‐ Lab Experiment 8 Equilibrium II – Le Chatelier’s Principle

3. When cleaning your test tubes, excess rinsings and soapy water should not be placed in waste. Think about how chemical waste must be handled and explain why it would be good laboratory practice to avoid putting excessive rinse and soapy water into the hazardous waste containers.   

4. In your own words, explain the difference between Q and K.

5. Which description below is most accurate for a solution that is at equilibrium? Explain your answer.

 A chemical system in which the color of the solution is slowly changing.

 A chemical system in which the color is not changing.

Answer 1

3)
soapy water is not hazardousto health but waste is hazardous to our health
so, waste need special tretment to make it somwhat pure which does not harm our health and resource
so we do not mix soapy water and waste
4)
K is used when equlibrium is reached that is rate of forward and backward reaction is equal
Q is used every where except at equlibrium
when, Q<K forward reaction is favored
and when, Q>K bacward reaction is favoured
5)
at equlibrium there is no physical or chemical change
hence colour of system does not change