What is the mass of gold in a bar that measures 3.0 cm by 3.0 cm by 20.0 cm?

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October 13, 2020
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What is the mass of gold in a bar that measures 3.0 cm by 3.0 cm by 20.0 cm? (The density of gold is 19.3 g/cm3 at 20°C.)

9.33 g

3500. g

180 g

3474 g

3.5×103 g

A 32.0-g sample of oxygen gas occupies 22.40 L at 1.0 atmosphere of pressure and 0°C. How many cubic inches does it occupy?

0.367

1.37

1.367×103

1.37×103

1.37×10-3

What is the mass of gold in a bar that measures 3.0 cm by 3.0 cm by 20.0 cm?

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The cross section of a copper strip is 1.2 mmthick and 30 mm wide. There is a 15-A current through this cross section, with the charge carriers…

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