Exam (elaborations)

CHM 1100C CHM1100c Final Exam (Latest Spring) (CHM1100C)

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Course
CHM 1100C (CHM1100C)

Institution
Rasmussen College

CHM1100c Final Exam Question 1 0 out of 2 points Calculate [H 3 O + ] of a solution with a pH of 2.14. Selected Answer: 6.35 x 10-5M Answers: 6.35 x 10-5M 5.45 x 10-4M 3.55 x 10 - 4M 7.24 x 10-3M  Question 2 0 out of 2 points Perform calculations and report answers with correct significant figur...

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Uploaded on April 4, 2022
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Type Exam (elaborations)
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chm 1100c
chm1100c final exam
final exam
calculate h 3 o of a solution with a ph of 214
chm 1100c chm1100c final exam latest spring chm1100c

Institution
Rasmussen College
CHM 1100C (CHM1100C)

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 Question 1
0 out of 2 points
+
Calculate [H 3 O ] of a solution with a pH of 2.14.
Selected
Answer: 6.35 x 10-5M
Answers: 6.35 x 10-5M
5.45 x 10-4M
-
3.55 x 10
4
M

7.24 x 10-3M
 Question 2
0 out of 2 points
Perform calculations and report answers with correct significant figures for the following
equation: 4.54(2.8-0.063)/8.50= Use scientific notation when necessary.
Selected
Answer: 1.46
Answers: 1.462
1.4619
1.46

1.5
 Question 3
2 out of 2 points
Which is NOT an assumption made by the kinetic molecular theory?
Selected
Answer: There is strong attraction or repulsion between the gas particles. In other words,
they strongly interact with each other.
Answers: The average kinetic energy (energy due to motion) of the gas particles is
proportional to the temperature measured in kelvin. As temperature increases, the
particles move faster and have more energy.

There is strong attraction or repulsion between the gas particles. In other words,
they strongly interact with each other.
Particles are very small with a lot of space between them.
A gas is a collection of particles (molecules or atoms) in constant motion. This
motion is straight-line motion.
 Question 4
2 out of 2 points
Chlorine has two naturally occuring isotopes: chlorine - 35 and chlorine - 37. What is the symbol
for each of these Chlorine isotopes?

, Selected
Answer:

Answers:

 Question 5
2 out of 2 points
What is the name of the ionic compound: CuCl2?
Selected
Answer: Copper(II) chloride
Answers:
Copper(II) chloride
Copper(II) chlorine
Copper(I) chlorine
Copper(I) chloride
 Question 6
2 out of 2 points
Calculate the mass of oxygen (O) in magnesium dichromate (MgCr 2 O 7 ).
Selected
Answer: 46.6%
Answers: 10.1%
44.0%
43.3%

46.6%
 Question 7
0 out of 2 points
Find the molecular weight of K2SO4 .
Selected
Answer: 174.252 g/mol
Answers:
174.25 g/mol
87.157 g/mol

, 87.16 g/mol
174.252 g/mol
 Question 8
2 out of 2 points
If the theoretical yield of the below reaction is 4.13g of MgO and the actual yield is 2.48g of
MgO, what is the percent yield?
Selected
Answer: 60.0%
Answers: 0.600%

60.0%
167%
1.67%
 Question 9
2 out of 2 points
Predict the effect of increasing the reaction volume
N2O4(g) ↔ 2NO2(g)

Selected
Answer: Shift right
Answers: No effect

Shift right
Shift left
 Question 10
2 out of 2 points
What is an example of a physical property?
Selected
Answer: Water freezing at
0 ˚C
Answers:
Water freezing at
0 ˚C
Lighting a match
Wood burning
Cooking meat
 Question 11
0 out of 2 points
What is an example of a pure substance?

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Exam (elaborations)

CHM 1100C CHM1100c Final Exam (Latest Spring) (CHM1100C)

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