Questions from General Chemistry


Q: For each of the following unbalanced chemical equations, suppose that exactly

For each of the following unbalanced chemical equations, suppose that exactly 5.00 g of each reactant is taken. Determine which reactant is limiting, and calculate what mass of each product is expecte...

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Q: Consider samples of phosphine (PH3), water (H2O), hydrogen

Consider samples of phosphine (PH3), water (H2O), hydrogen sulfide (H2S), and hydrogen fluoride (HF), each with a mass of 119 g. Rank the compounds from the least to the greatest number of hydrogen at...

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Q: For each of the following unbalanced chemical equations, suppose 10.

For each of the following unbalanced chemical equations, suppose 10.0 g of each reactant is taken. Show by calculation which reactant is the limiting reagent. Calculate the mass of each product that i...

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Q: For each of the following unbalanced chemical equations, suppose that exactly

For each of the following unbalanced chemical equations, suppose that exactly 1.00 g of each reactant is taken. Determine which reactant is limiting, and calculate what mass of the product in boldface...

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Q: A compound with molar mass 180.1 g/mol has

A compound with molar mass 180.1 g/mol has the following composition by mass: C ………...40.0% H ………... 6.70% O ………...53.3% Determine the empirical and molecular formulas of the compound.

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Q: For each of the following unbalanced chemical equations, suppose 1.

For each of the following unbalanced chemical equations, suppose 1.00 g of each reactant is taken. Show by calculation which reactant is limiting. Calculate the mass of each product that is expected....

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Q: For each of the following unbalanced chemical equations, suppose that exactly

For each of the following unbalanced chemical equations, suppose that exactly 15.0 g of each reactant are taken. Using Before–Change–After (BCA) tables, determine which reactant is limiting, and calcu...

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Q: Lead(II) carbonate, also called “white lead,”

Lead(II) carbonate, also called “white lead,” was formerly used as a pigment in white paints. However, because of its toxicity, lead can no longer be used in paints intended for residential homes. Lea...

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Q: Copper(II) sulfate has been used extensively as a fungicide

Copper(II) sulfate has been used extensively as a fungicide (kills fungus) and herbicide (kills plants). Copper(II) sulfate can be prepared in the laboratory by reaction of copper(II) oxide with sulfu...

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Q: Hydrogen peroxide is used as a cleaning agent in the treatment of

Hydrogen peroxide is used as a cleaning agent in the treatment of cuts and abrasions for several reasons. It is an oxidizing agent that can directly kill many microorganisms; it decomposes upon contac...

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