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Question
The Ksp of Ca(OH)2 is 5.5 10-5 at 25 C. What is the concentration of OH-(aq) in a saturated solution of Ca(OH)2(aq)?
A.1.9 10-3 M
B.7.4 10-3 M
C.2.4 10-2 M
D.4.0 10-2 M
E.4.8 10-2 M
Answer
This answer is hidden. It contains 2 characters.
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Q:
What is the half-life of a first-order reaction if it takes 4.4 10-2 seconds for the concentration to decrease from 0.50 M to 0.20 M?A.2.5 10-2 sB.3.3 10-2 sC.1.6 sD.21 sE.27 s
Q:
Hydrogen peroxide decomposes into water and oxygen in a first-order process.
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Q:
A student analyzed a first-order reaction and obtained the graph below. Unfortunately, the student forgot to label the axes. What are the correct labels for the x and y axes? A.x axis = time, y axis = ln[A]
B.x axis = ln[time], y axis = [A]
C.x axis = ln[time], y axis = [A]
D.x axis = time, y axis = 1/[A]
E.x axis = 1/time, y axis = 1/[A]