Answers: 1
Chemistry, 22.06.2019 18:00
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.
Answers: 3
Chemistry, 23.06.2019 06:00
Which of the following is a solution a- brewed coffee b-tomato juice c- ranch salad dressing d- muddy water
Answers: 1
Chemistry, 23.06.2019 10:20
An engineer wishes to design a container that will hold 12.0 mol of ethane at a pressure no greater than 5.00x10*2 kpa and a temperature of 52.0 degrees celsius. what is the minimum volume the container can have?
Answers: 1
Chemistry, 23.06.2019 11:00
Which of the following reactions is endothermic? h2(g) + ÂŊ o2(g) h2o(g), h = -57.82 kcal ÂŊn2(g) + o2(g) + 8.1 kcal no2(g) ÂŊ n2(g) + 3/2 h2(g) nh3(g) + 11.0 kcal c(diamond) + o2(g) co2, h = -94.50 kcal
Answers: 2
Name the compound on the curve above that would make a saturated solution if 115 grams of were disso...
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