Chemistry, 25.02.2020 04:36 dogeking12
A first-order reaction (A → B) has a half-life of 25 minutes. If the initial concentration of A is 0.900 M, what is the concentration of B after 50 minutes?
Answers: 2
![[A]_o=0.900 M](/tpl/images/0522/8207/2af3f.png)
![[A]=?](/tpl/images/0522/8207/8be21.png)
![[A]=[A]_o\times e^{-kt}](/tpl/images/0522/8207/9e0b6.png)
![[A]=0.900 M\times e^{-0.02772 min^{-1}\times 50 minutes}](/tpl/images/0522/8207/3acb3.png)
Another question on Chemistry
Chemistry, 21.06.2019 15:30
219 grams of iron (iii) oxide reacts with excess carbon according to the reaction equation shown below. fe2o3 + c → fe + co2 after a scientist performs the chemical reaction they find the actual yield of iron to be 57.4 grams. calculate the percent yield of this chemical reaction.
Answers: 1
Chemistry, 21.06.2019 23:40
If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?
Answers: 2
Chemistry, 22.06.2019 11:00
As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter
Answers: 3
Chemistry, 22.06.2019 12:00
Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.
Answers: 1
You know the right answer?
A first-order reaction (A → B) has a half-life of 25 minutes. If the initial concentration of A is 0...
Questions
Mathematics, 07.01.2020 17:31
History, 07.01.2020 17:31
Mathematics, 07.01.2020 17:31
English, 07.01.2020 17:31
Mathematics, 07.01.2020 17:31
Mathematics, 07.01.2020 17:31
Mathematics, 07.01.2020 17:31
