A change in the entropy of a system indicate that the disorder of the system has changed. Option A
<h3>What is a change in entropy?</h3>
A change in entropy indicates is a measure of the disorder, or randomness, in a system.
An increased value of entropy means more disorder, and a decreased value of entropy means less disorder.
These changes in entropy occur spontaneously
Thus, a change in the entropy of a system indicate that the disorder of the system has changed. Option A
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Answer:
False
Explanation:
oxygen doesn't have carbon in it
Answer:
anor277
Nov 17, 2017
Well, by definition,
Molarity
≡
Moles of solute
Volume of solution
Explanation:
And thus...
moles of solute
=
molarity
×
volume
We use a molar quantity of
80.3
⋅
g
174.01
⋅
g
⋅
m
o
l
−
1
=
0.461
⋅
m
o
l
with respect to
potassium sulfate
And thus
volume
=
moles of solute
molarity
80.3
⋅
g
174.01
⋅
g
⋅
m
o
l
−
1
3.12
⋅
m
o
l
⋅
L
−
1
=
0.148
⋅
L
.
Answer:
The molarity of the solution is: 2,167 M.
Explanation:
Molarity is a concentration measure that expresses the moles of solute per liter of solution. In this case it is calculated with the simple rule of three:
3,6 L solution ------- 7,8 moles of MgCl2
1 L solution -----------x= (1 L solution x 7,8 moles of MgCl2)/3,6 L solution
x=2,167 moles of MgCl2 ---> <em>The solution is 2, 167 M</em>