Enter your answer in the provided box. If 0.050 mol hydrochloric acid (HCI) is mixed with 0.050 mol of sodium hydroxide (NaOH) in a "coffee
cup" calorimeter, calculate the temperature change of 69.4 g of the resulting solution if the specific heat
of the solution is 1.00 cal/g.°C and the quantity of heat released by the reaction is 7.0 x 102 cal.
AI
|°C

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.