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July 23, 2014

Homework Help: Chem

Posted by Anonymous on Wednesday, September 12, 2012 at 1:00pm.

Any help is appreciated!

Gold has a density of 19.3 g/cm3. Do you think you could carry 2.40 cubic ft (rhetorical--don't answer)? How many pounds does 2.40 cubic feet of gold weigh? [453.6 g = 1 lb, 2.54 cm = 1 in, and 1 ft = 12 in.]

7.42e-2


A scientific oven is programmed to change temperature from 51.4 F to 207.4 F in 1.50 minute(s). Express the rate of change in degrees Celsius per second.


-1.16


A bug is observed to travel 72 cm in 7.5 seconds. What is the bug's speed in miles per hour?

.21

Thank you!

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