Consider this equilibrium reaction at 400 k. br2(g)+cl2(g)↽−−⇀2brcl(g)kc=7.0 br 2 ( g ) + cl 2 ( g ) ↽ − − ⇀ 2 brcl ( g ) k c = 7.0 if the composition of the reaction mixture at 400 k is [brcl]=0.004150 [ brcl ] = 0.004150 m, [br2]=0.003660 [ br 2 ] = 0.003660 m, and [cl2]=0.0006720 [ cl 2 ] = 0.0006720 m, what is the reaction quotient, q ?

Identify a specific example for each type of technology

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.

The point along a planet's orbit where it is closest to the sun is called the