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Quartz, which contains one silicon atom and two oxygen atoms per formula unit, i

ID: 733306 • Letter: Q

Question

Quartz, which contains one silicon atom and two oxygen atoms per formula unit, is the second-most-common mineral on Earth after feldspar. It is used as a gemstone, as well as in pressure gauges, oscillators, resonators, wave stabilizers, heat-ray lamps, and prismastic lenses, and in the manufacture of glass, paints, abrasives, and precision instruments such as watches. What is the chemical formula for quartz? Express your answer as a chemical formula. How many oxygen atoms are in 3.10g of quartz?

Explanation / Answer

part A: SiO2 part B: 3.10*2*6*10^23/60 = 6.2