Asilver-copper alloy had a mass of 0.1264g. when the alloy was dissolved in nitric acid and the silver precipitated as silver chloride, the precipitate had a mass of 0.1375g. calculate the percent of silver in the alloy. for full credit, make sure you show your calculations.

The percent of silver in the alloy is 81.87%.

Explanation:

Mass of the alloy = 0.1264 g

Mass of silver chloride precipitate = 0.1375 g

Moles of silver chloride precipitate =

In 1 mole of silver chloride there are 1 mole of silver, then in 0.0009582 moles of silver chloride will ahve:

of silver

Mass of 0.0009582 moles of silver = 0.0009582 × 108 g/mol=0.1035 g

The percent of silver in the alloy:

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

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tony (lordcaos066)