Question 1

25 grams of HF is equal to how many moles?

Accepted Answer

1.25

Answer

20.0

Answer

500.2

Answer

0.80

Question 2

200 g of Ca(OH)$_2$   is equal to how many moles ?

Accepted Answer

2.70

Answer

0.37

Answer

14819.2

Answer

3.50

Question 3

How many moles are in 1.1 grams of FeCl$_3$ ?

Accepted Answer

0.007

Answer

147.45

Answer

0.012

Answer

178.42

Question 4

How many moles are in 50 grams of H$_2$O?

Accepted Answer

2.78

Answer

900.8

Answer

2.93

Answer

0.36

Question 5

6.6 moles of CO is equal to how many grams?

Accepted Answer

184.9

Answer

78.3

Answer

0.24

Answer

4.24

Question 6

5.2 moles of K$_2$SO$_4$ is equal to how many grams?

Accepted Answer

906.2

Answer

174.3

Answer

0.03

Answer

0.029

Question 7

How many grams are in  3.5 moles of H$_2$O?

Accepted Answer

63.06

Answer

59.53

Answer

0.19

Answer

18.016

Question 8

How many grams are in 2 moles of NaBr?

Accepted Answer

205.8

Answer

102.9

Answer

0.19

Answer

79.9

Question 9

2 moles of He is equal to how many atoms?

Accepted Answer

1.204 x 10$^{23}$

Answer

1.204 x 10$^{24}$

Answer

6.02 x 10$^{23}$

Answer

3.01 x 10$^{23}$

Question 10

5.5 moles of Au is equal to how many atoms?

Accepted Answer

3.31 x 10$^{24}$

Answer

9.14 x 10$^{-24}$

Answer

3.31 x 10$^{25}$

Answer

3.31 x 10$^{22}$

Question 11

How many formula units are in 6 moles of NaCl?

Accepted Answer

3.61 x 10$^{24}$

Answer

6.02 x 10$^{24}$

Answer

6.02 x 10$^{23}$

Answer

3.61 x 10$^{25}$

Question 12

How many molecules are in 12 moles of CO$_2$?

Accepted Answer

7.22 x 10$^{24}$

Answer

528.12

Answer

7.22 x 10$^{25}$

Answer

1.99 x 10$^{-23}$

Question 13

How many moles are in 1.806 x 10$^{24}$ atoms of Ne?

Accepted Answer

3

Answer

6.02 x 10$^{25}$

Answer

2

Answer

1.204 x 10$^{-24}$

Question 14

How many moles are in 1.204 x 10$^{24}$ atoms of Br?

Accepted Answer

2

Answer

1.806 x 10$^{24}$

Answer

How many moles are in 1.806 x 10$^{-24}$

Answer

3

Question 15

6.02 x 10$^{23}$ atoms of Ar is equal to how many moles ?

Accepted Answer

1

Answer

2

Answer

6.02

Answer

6

Question 16

3.01 x 10$^{23}$ atoms of Cu is equal to how many moles ?

Accepted Answer

0.5

Answer

2.5

Answer

3

Answer

2

Question 17

How many  molecules are in 18.02 g of H$_2$O ?

Accepted Answer

6.02 x 10$^{23}$

Answer

1

Answer

1.08 x 10$^{25}$

Answer

6.02 x 10$^{24}$

Question 18

How many  molecules are in 128 g of SO$_2$ ?

Accepted Answer

1.204 x 10$^{24}$

Answer

1

Answer

6.02 x 10$^{23}$

Answer

2

Question 19

How many grams are in 1.204 x 10$^{24}$ atoms of Ne?

Accepted Answer

40.36

Answer

2

Answer

20.18

Answer

1

Question 20

How many grams are in 1.505 x 10$^{24}$ atoms of He?

Accepted Answer

10.0

Answer

2.0

Answer

2.5

Answer

4.0

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