2. Lead metal can be extracted from a mineral called galena, which contains 86.6% lead by mass. A particular ore contains 68.5% galena by mass. A particular ore contains 68.5% galena by mass. If the lead can be extracted with 92.5% efficiency, what mass of ore is required to make a lead sphere with a 5.00 cm radius?

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Q: Claculate the mass of each sample.

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Q: How much will it cost to make my wooden ruler out of aluminum.   ? (aluminum) = 2.70 g/cm3   cost…

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Q: What is the difference between a chemical process and a physical process in chemistry

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Q: Solid antimony has a density of 6.70 g/cm°. Liquid antimony has a density of 6.53 g/cm°. If a 1.34…

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Q: What mass of solid lead would displace exactly 234.6 liters of water? Given that lead has a density…

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Q: A thin sheet of lead measures 15.5 cm by 23.0 cm and weighs 0.627 g. If the density of lead i 11.34…

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.