Gold is alloyed with other metals to increase its hardness in making jewelry. You have a piece of jewelry containing only gold and silver, which have pure densities of 19.3 g/cm³ and 10.5 g/cm³ respectively. You measure the piece of jewelry's volume to be 1.25 cm³ and its mass to be 19.1 g. Assuming the total volume of the jewelry is the sum of the volumes of the gold and silver it contains, what is the mass percent of gold in the piece?

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Q: a small block of a metal with a mass of 223.1g when submerged in a beaker containing water, the…

A: Mass of metal = 223.1 g Density of metal = 7.41 g/cm3 = 7.41 g/mL

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A: given, mass of mercury = 225 kilogram = 225000 grams density of mercury = 13.6 g/mL

Q: A chemistry student needs 30.0 g of diethylamine for an experiment. By consulting the CRC Handbook…

A: Ans

Q: Gold is alloyed with other metals to increase its hardness in making jewelry. You have a piece of…

A: Given : mass of jewellery = 20.5 g Volume of jewellery = 1.25 cm3 Density of gold = 19.3 g/cm3  And…

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Q: Gaseous ethane (CH3CH3) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO2)…

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Q: Suppose

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Q: what mass (in g) of solid lead would displace exactly 234.6 liters of water? The density of the lead…

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Q: mass of the necklace

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Q: Gold is alloyed (mixed) with other metals to increase its hardness in making jewellery. Consider a…

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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.