A prospector finds a solid rock composed of granite ? 2650, Ask an Expert

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A prospector finds a solid rock composed of granite (? = 2650 kg/m3) and gold. The volume of the rock is 3.00e-4 m3 and its mass is 3.48 kg. (a) What mass of gold is contained in the rock in kg? (b) What percentage of the rock is gold by volume? (c) What percentage of the rock is gold by mass?

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