subject
Chemistry, 02.07.2019 03:20 rah45

Consider the reaction, c2h4(g) + h2(g) - c2h6(8), where ah = -137 kj. how many kilojoules are released when 3.5 mol of ch4
reacts?
480 kj are released
20 x 103 kj are released
570 kj are released
137 kj are released

ansver
Answers: 1

Other questions on the subject: Chemistry

image
Chemistry, 21.06.2019 18:30, devie8297
Strong conductivity of plasma allows it to act and react as and
Answers: 2
image
Chemistry, 22.06.2019 05:30, MansellS5529
A3.37-mg sample of protein was chemically digested to convert its nitrogen into ammonia and then diluted to 100.0 ml. then 10.0 ml of this solution was placed in a 50-ml volumetric flask and treated with 5 ml of phenol solution plus 2 ml of sodium hypochlorite solution. the sample was diluted to 50.0 ml, and the absorbance at 625 nm was measured in a 1.00-cm cuvette and found to be 0.486. for reference, a standard solution was prepared from 10.0 mg of nh4cl (molar mass = 53.49 grams/mole) dissolved in 1.00 l of water. then 10.0 ml of this standard was placed in a 50-ml volumetric flask, treated in the same manner as the unknown, and the absorbance found to be 0.323. finally, a reagent blank was prepared using distilled water in place of unknown, it was treated in the same manner as the unknown, and the absorbance found to be 0.076. calculate the weight percent of nitrogen in the protein.
Answers: 1
image
Chemistry, 22.06.2019 11:30, ansuaprajita1506
Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.
Answers: 3
image
Chemistry, 22.06.2019 22:30, jaylenmiller437
The diagram shows the relationship between scientific disciplines. the names of some scientific disciplines have been removed from the boxes. which scientific discipline belongs in the blue box? a. physics b. biology c. chemistry d. metallurgy
Answers: 2
You know the right answer?
Consider the reaction, c2h4(g) + h2(g) - c2h6(8), where ah = -137 kj. how many kilojoules are releas...

Questions in other subjects:

Konu
History, 05.07.2019 15:20