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2 years ago

If 500 mL of liquid mercury weighs 6.53 kg, what is the mass in pounds? A) 1.44 lb B) 2960 lb C ) 14.4 lb D) 7.19 lb E) 2.96 lb

Chemistry

1 answer:

soldi70 [24.7K]2 years ago

8 0

Answer:

The correct option is: C ) 14.4 lb

Explanation:

The standard International unit of mass is kilogram, kg. Other commonly used units of mass are grams (g), tonne (t), pounds (lb).

The mass of 500 mL liquid mercury is 6.53 kg.

Since, 1 kg = 2.20462 lb ≈ 2.205 lb

Therefore, the mass of 500 mL liquid mercury in pounds = 6.53 × 2.20462 = 14.39619 lb ≈ 14.4 lb.

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Answer:

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<u>Answer:</u> The average speed of the runner is 6.618 miles/hr

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To calculate the average speed of the runner, we use the equation:

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Putting values in above equation, we get:

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To convert the speed into miles per hour, we use the conversion factors:

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