A Hydrocarbon,subjected to Elemental Analysis,was Found to Contain 79

question 121

Multiple Choice

A hydrocarbon,subjected to elemental analysis,was found to contain 79.89 % carbon and 20.11 % hydrogen by mass.What is the empirical formula of the hydrocarbon?

• A)CH₄
• B)C₂H₆
• C)C₄H
• D)C₁₀H
• E)CH₃

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Definitions:

Dependent Variables

Variables in an experiment or study whose changes depend on the effects of other variables (independent variables).

Exponential Smoothing

A weighted moving average forecasting technique in which data points are weighted by an exponential function.

Simple Moving Average

A statistical method used to analyze data points by creating a series of averages of different subsets of the full data set.

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The ability of a company or system to quickly react to changes in demand, customer preferences, or market conditions, often critical for maintaining high levels of customer satisfaction.