How Many Molecules Are in a Sample of Water, H₂O

question 8

Multiple Choice

How many molecules are in a sample of water, H₂O, which has a mass of 50.0 g?

• A)1.67 x 10²⁴ molecules
• B)5.42 x 10²⁶ molecules
• C)2.16 x 10²³ molecules
• D)3.01 x 10²⁵ molecules
• E)8.30 x 10^-23 molecules

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Definitions:

Positively Skewed

Describes a distribution of data where the tail on the right side of the frequency distribution is longer than the left side, indicating that most values are clustered around the left.

Median

A statistical measure representing the middle value in a sorted, listed version of a set of numbers, effectively splitting the data set into two halves.

Mean

The average value of a set of numbers, calculated by dividing the sum of all the values by the number of values.

Symmetric

Characteristic of a shape or figure that is identical on both sides of a central line; it applies broadly to situations where two sides of something are mirror images of each other.