Suppose an Unknown Compound XY Has an X-To-Y Mass Ratio

question 54

Multiple Choice

Suppose an unknown compound XY has an X-to-Y mass ratio of 4.0.If decomposition of compound XY gives 12.0 grams of X,then how many grams of Y must form?

• A)48.0 grams
• B)12.0 grams
• C)4.0 grams
• D)3.0 grams
• E)none of the above

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Definitions:

Formic Acid

The simplest carboxylic acid with the chemical formula HCOOH, known for its role in ant stings.

Empirical Formula

The simplest expression of a compound's composition, showing the ratio of elements without structural information.

Elemental Analysis

Elemental analysis is a process by which the composition of chemical substances is determined, identifying the quantity of each element within a compound.

Acid/Base Reaction

A chemical reaction that involves the transfer of hydrogen ions (H+) between a proton donor (acid) and a proton acceptor (base).