What Is the Mole Fraction of Ne in a Mixture

question 86

Multiple Choice

What is the mole fraction of Ne in a mixture containing 10.1 g of Ne, 79.9 g of Ar, and 83.8 g of Kr?

• A)0.40
• B)0.25
• C)0.20
• D)0.14
• E)0.058

---

Definitions:

Standard Normal Distribution

A normal distribution with a mean of 0 and a standard deviation of 1, used in statistical analysis.

Mean

The average of a set of numbers, calculated by dividing the sum of all the numbers by the count of numbers.

Standard Error

The standard deviation of the sampling distribution of a statistic, most commonly the mean; it is used to estimate the efficiency, accuracy, or precision of a sample-based estimate.

Sample Mean

The average value of a sample set of numbers, calculated by adding all the values together and dividing by the number of values.