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Chemical Quantities And Reactions

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Question 1
Free
Multiple Choice

One mole of particles of any substance contains how many particles?

Choose correct answer/s
A

image particles

B

3 × image particles

C

3 × image particles

D

6.02 × image particles

E

6.02 × image particles

Check answer
Question 2
Free
Multiple Choice

Avogadro's number is the number of ________ .

Choose correct answer/s
A

particles in 1 mole of a substance

B

amu in 1 mole of a substance

C

grams in 1 mole of a substance

D

moles in 6.02 × image g of an element

E

moles in 6.02 × image amu of an element

Check answer
Question 3
Free
Multiple Choice

One mole of copper(II)sulfate,CuS image ,contains ________ O atoms.

Choose correct answer/s
A

4

B

6.02 × image

C

1.51 × image

D

2.41 × image

E

2.41 × image

Check answer
Question 4
Free
Multiple Choice

0.400 mole of sucrose, image image image ,contains ________ C atoms.

Choose correct answer/s
A

12

B

6.02 × image

C

5.02 × image

D

2.89 × image

E

4.80

Check answer
Question 5
Free
Multiple Choice

One mole of copper(II)sulfate,CuS image ,contains ________ moles of O.

Choose correct answer/s
A

4

B

6.02 × image

C

1.51 × image

D

2.41 × image

E

2.41 × image

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Question 6
Multiple Choice

0.400 mole of sucrose, image image image ,contains ________ moles of C.

Choose correct answer/s
A
12
B
6.02 × image
C
5.02 × image
D
2.89 × image
E
4.80
To unlock the question
Question 7
Multiple Choice

How many moles of carbon atoms are there in 0.500 mole of image image ?

Choose correct answer/s
A
0.500 mole
B
1.00 mole
C
3.00 moles
D
6.02 × image moles
E
4.00 moles
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Question 8
Multiple Choice

The molar mass of potassium is ________ .

Choose correct answer/s
A
19.00 g/mole
B
31.00 g/mole
C
6.02 × image g/mole
D
39.10 g/mole
E
15.02 g/mole
To unlock the question
Question 9
Multiple Choice

One mole of helium gas weighs ________ .

Choose correct answer/s
A
1.000 g
B
2.002 g
C
3.003 g
D
4.003 g
E
8.006 g
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Question 10
Multiple Choice

Calculate the molar mass of potassium chloride,KCl.

Choose correct answer/s
A
74.55 g/mole
B
54.55 g/mole
C
6.745 g/mole
D
67.45 g/mole
E
19.00 g/mole
To unlock the question
Question 11
Multiple Choice

What is the molar mass of copper(II)sulfate,CuS image ?

Choose correct answer/s
A
16.00 g/mole
B
63.60 g/mole
C
111.6 g/mole
D
159.6 g/mole
E
319.2 g/mole
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Question 12
Multiple Choice

Calculate the molar mass of magnesium chloride,Mg image .

Choose correct answer/s
A
24.31 g/mole
B
95.21 g/mole
C
125.9 g/mole
D
59.76 g/mole
E
70.90 g/mole
To unlock the question
Question 13
Multiple Choice

What is the molar mass of sodium phosphate, image image ?

Choose correct answer/s
A
69.96 g/mole
B
118.0 g/mole
C
163.9 g/mole
D
226.1 g/mole
E
354.0 g/mole
To unlock the question
Question 14
Multiple Choice

What is the molar mass of sucrose ( image image image )?

Choose correct answer/s
A
29.02 g/mole
B
50.23 g/mole
C
210.0 g/mole
D
342.3 g/mole
E
182.0 g/mole
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Question 15
Multiple Choice

One mole of neon atoms has a mass of ________ .

Choose correct answer/s
A
6.02 × image g
B
14.01 g
C
10.01 g
D
20.18 g
E
22.99 g
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Question 16
Multiple Choice

The molar mass of image image image is ________ .

Choose correct answer/s
A
76.09 g/mole
B
60.09 g/mole
C
29.02 g/mole
D
69.02 g/mole
E
52.01 g/mole
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Question 17
Multiple Choice

The molar mass of calcium hydroxide, image ,is ________ .

Choose correct answer/s
A
58.09 g/mole
B
57.09 g/mole
C
74.10 g/mole
D
114.2 g/mole
E
54.02 g/mole
To unlock the question
Question 18
Multiple Choice

What is the molar mass of image image image ,a substance formerly used in medicine as an antacid?

Choose correct answer/s
A
71.28 g/mole
B
118.3 g/mole
C
150.3 g/mole
D
214.3 g/mole
E
262.9 g/mole
To unlock the question
Question 19
Multiple Choice

How many moles of water, image O,are present in 75.0 g image O?

Choose correct answer/s
A
4.41 moles
B
4.16 moles
C
75.0 moles
D
7.50 moles
E
1.35 × image moles
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Question 20
Multiple Choice

0.100 mole of lithium has a mass of ________ .

Choose correct answer/s
A
3.00 g
B
0.300 g
C
6.94 g
D
0.694 g
E
0.700 g
To unlock the question