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Question 1 

What is the mass of a 12.5% blood plasma sample that contains 10.0 g of dissolved solute?
A) 1.25 g
B) 1.43 g
C) 70.0 g
D) 80.0 g
E) 125 g

Answer

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Question 2 

What is the solubility of LiCl at 55 °C? (Refer to text Figure 13.5.)
A) 38 g/100 g water
B) 46 g/100 g water
C) 55 g/100 g water
D) 101 g/100 g water
E) 139 g/100 g water

Answer

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Question 3 

What is the volume occupied by 0.750 g of nitrogen gas, N2, at STP?
A) 0.600 L
B) 0.938 L
C) 16.8 L
D) 37.3 L
E) 836 L

Answer

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Question 4 

The first inert gas compound to be synthesized was XePtF6 (440.37 g/mol). What is the percentage of platinum in the compound?
A) 4.314%
B) 25.89%
C) 29.81%
D) 44.30%
E) 55.90%

Answer

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Question 5 

How many formula units of lithium iodide, LiI, have a mass equal to 4.24 g?
A) 1.90 x 1025 formula units
B) 1.91 x 1022 formula units
C) 2.55 x 1024 formula units
D) 5.24 x 1023 formula units
E) 5.24 x 1026 formula units

Answer

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Question 6 

According to the metric system, 1 L = ________ mL.
A) 1 x 101
B) 1 x 102
C) 1 x 103
D) 1 x 106
E) none of the above

Answer

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Question 7 

According to the metric system, 1 Tm = ________ m.
A) 1 x 1012
B) 1 x 109
C) 1 x 106
D) 1 x 103
E) none of the above

Answer

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Question 8 

A sample of 10K gold contains the following: 10.0 g gold, 4.0 g silver, 5.0g copper, and 5.0 g nickel. What is the percent gold in the sample?
A) 10%
B) 14%
C) 42%
D) 58%
E) 71%

Answer

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Question 9 

Add 5.0 x 104 to 2.0 x 103 and express the answer in scientific notation.
A) 1.0 x 103
B) 2.5 x 103
C) 2.5 x 104
D) 5.2 x 103
E) 5.2 x 104

Answer

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Question 10 

A lithium atom has a radius of 0.000 000 015 2 cm. Express the atomic radius in scientific notation.
A) 1.52 x 10-9 cm
B) 1.52 x 10-8 cm
C) 1.52 x 10-7 cm
D) 1.52 x 107 cm
E) 1.52 x 108 cm

Answer

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