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7 de jul. de 2016 · First, convert the mass of each element to moles: number of moles = mass / atomic weight. For copper, this is 1.659g / 63.546g/mol ≈ 0.0261 mol. For sulfur, this is 0.421g / 32.065g/mol ≈ 0.0131 mol.
answer. answered. a sample of copper wire with a mass of 1.659 g is heated with excess powdered sulfur until the copper has combined with the sulfur, and all the extra sulfur has been burned off. The final product (a sulfide of copper ) has a mass of 2.080 g. Calculate the empirical formula of the product, and name it.
A sample of copper wire with a mass of 1.659 g is heated with excess powdered sulfur until the copper has combined with the sulfur, and all the extra sulfur has been burned off. The final product (a sulfide of copper) has a mass of 2.080 g. Calculate the empirical formula of the product, and name it.
Deriving Number of Atoms from Mass for an Element Copper is commonly used to fabricate electrical wire . How many copper atoms are in 5.00 g of copper wire?
Example \(\PageIndex{6}\): Deriving Number of Atoms from Mass for an Element. Copper is commonly used to fabricate electrical wire (Figure \(\PageIndex{6}\)). How many copper atoms are in 5.00 g of copper wire? Figure \(\PageIndex{6}\): Copper wire is composed of many, many atoms of Cu.
19 de feb. de 2023 · A sample of copper wire with a mass of 1.659 g is heated with excess powdered sulfur combined with the sulfur, and all the extra sulfur has been burned off. The final product (a sulfide of copper) has a mass of 2.080 g. Calculate the Empirical Formula of the product and name it. Show work.
Calculate the drift velocity of electrons in a copper wire with a diameter of 2.053 mm (12-gauge) carrying a 20.0-A current, given that there is one free electron per copper atom. (Household wiring often contains 12-gauge copper wire, and the maximum current allowed in such wire is usually 20.0 A.)
