1.
Which of the following options state the importance of balancing
equations while solv...
1.
Which of the following options state the importance of balancing
equations while solving the stoichiometry problems?
The balancing of an equation shows the
a reacting ratios of all substances involved in
the reaction in terms of moles
The balancing of an equation shows the
b reacting ratios of all substances involved in
the reaction in terms of grams
The balancing of an equation shows the
C reacting ratios of all substances involved in
the reaction in terms of liters
d None of the above
Answers: 2
Chemistry, 21.06.2019 18:30
Calculate the change in entropy if br2(l) is converted to br2(g). s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)
Answers: 3
Chemistry, 22.06.2019 03:30
Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!
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, 22.06.2019 21:30
Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.
Answers: 1
English, 06.12.2020 21:20
Mathematics, 06.12.2020 21:20
History, 06.12.2020 21:20
History, 06.12.2020 21:20
French, 06.12.2020 21:20
Arts, 06.12.2020 21:20
History, 06.12.2020 21:20
Social Studies, 06.12.2020 21:20
Mathematics, 06.12.2020 21:20
Mathematics, 06.12.2020 21:20