Chemistry - Ch 3 Vocab (Pearson)

A quantity that has both a number and a unit

• precision

• measurement

• error

• significant figures

A given number is written as the product of two numbers: a coefficient and 10 raised to a power.

• significant figures

• accepted value

• accuracy

• scientific notation

A measure of how close a measurement comes to the actual value of whatever is measured.

• Percent error

• Accurcy

• Precision

• Experimental value

A measure of how close a series of measurements are to one another.

• Gram

• Conversion factor

• Measurement

• Precision

The correct value for the measurement based on reliable references.

• Accepted value

• Precision

• Accuracy

• Experimental value

The value measured in a lab

• Accepted value

• Experimental value

• Precision

• Accuracy

Difference between the experimental value and the accepted value.

• Accuracy

• Temperature

• Error

• Liter

The absolute value of the error divided by the accepted value, multiplied by 100%

• Percent error

• Error

• Experimental value

• Precision

All of the digits that are known, plus a last digit that is estimated.

• Precision

• Accuracy

• Error

• Significant figures

A revised version of the metric system.

• International System of Units

• Joule

• Liter

• Weight