Analysis of a reaction mixture showed that it had the composition 0.411 mol/l n2, 0.541 mol/l h2, and 0.12 mol/l nh3 at 800 k, at which temperature kc = 0.278 for n2(g) + 3 h2(g) ⇀↽ 2 nh3(g). calculate the reaction quotient qc .

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Answer asap need to be answered 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.

What is the morality of 2.50 l of solution that contains 1.85 mol of anhydrous sodium tetraborate?