Math

posted by Yasemine

We have an important chemsitry test due and I want to make sure that I do not mess up on my algebra. I am dealing with the integrated rate law, but my question is purely algebraically in nature. I hope, somebody can help me.

1) ln(A) = -kt+ln(B)

solve for t
solve for k
solve for B

2) 1/(B) = kt + 1/(B)

solve for k
solve for t
solve for B

Thank you so much for your help. It is greatly appreciated

  1. Reiny

    1)
    ln(A) = -kt+ln(B)
    kt = lnB - lnA
    kt = ln(B/A)
    t = ln(B/A) / k

    k = ln(B/A) / t

    lnB = lnA + kt
    B = e^(lnA + kt)

    2)
    1/B = kt + 1/B
    0 = kt
    t = 0
    or
    k = 0
    B is any value except B≠0
    (are you sure you have no typo in 2) ?

  2. Yasemine

    2) should be 1/(B) = kt+1(A)
    I am dealing with concentrations and A and B are just placeholders for the concentrations.
    Thanks

  3. Reiny

    2) I thought there was something wrong with your first typing of the question

    1/B = kt + 1/A
    multiply each term by AB, the LCD
    A = ABkt + B
    A - B = ABkt
    t = (A-B)/(ABk)
    k = (A-b)/(ABt)

    from: A = ABkt + B
    A = B(Akt + 1)
    B = A/(Akt + 1)

Respond to this Question

First Name

Your Answer

Similar Questions

  1. COM 125

    can you please help me paraphrase this paragraph. The eradication of al-Qaeda is as much an intelligence and law enforcement challenge as it is a purely military campaign. While special operations, commando raids, and air strikes are …

  2. integrated algebra

    i have this question and i kinda know how to do it but i'm not entirelly sure. here's the problem x-5/4 = x+5/x+2 if you can help great and thank you

  3. English for john browm

    Let me give you something on "multiple-choice" items that may help you to guess better. Many teachers prepare multiple-choice tests because they are easy to mark and offer the student the advantage of actually seeing what the correct …

  4. algebra

    Not sure if I have the correct answer dealing with inequalities and not having equal signs. so the problem is 3x+4>9x+2 I came up with 2/6>x?

  5. Chemistry

    The half-life of the first order reaction, A to products, is 53.2 s. What was the original concentration, (A)0 in moles per liter, if after 1.8 minutes, the concentration of A is 0.0783 moles per liter?

  6. Chemistry

    I am dealing with the integrated rate laws. Can somebody please help me with my algebra?

  7. law

    You and your classmates are divided into four groups that govern your entire school. Each group has a different function but all groups are of equal importance. The time comes when your school needs a new law, and each group has as …

  8. Math

    Gordon Moore stated that the number of transistors that can be placed on an integrated circuit will double every 2 years. This trend is known as Moore's Law. In 1978, the Intel 8086 held 29,000 transistors on an integrated circuit. …

  9. rate law chemistry

    hey so this is for rate law if the first step is the slow step. it is also an equilibrium. I just want to check if this is right. [Acetophenone]+[Ethoxide]<-k1--> k-1 [Intermediate]+[Ethanol] Just want to make sure this will …

  10. chemsitry

    home / study / questions and answers / science / chemistry / make sure to answer both parts: 1)balance the following ... Your question has been posted. We'll notify you when a Chegg Expert has answered. Post another question. . Question …

More Similar Questions