Chemistry Fall 2024 Semester Exam Practice Flashcardizz 7

Front

What are significant figures?

Back

Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

How do you determine the number of significant figures in a measurement?

Back

Count all non-zero digits, any zeros between them, and trailing zeros in a decimal number. Leading zeros are not counted.

Front

What is the rule for addition and subtraction regarding significant figures?

Back

The result should be reported to the least number of decimal places of any number in the operation.

Front

What is the rule for multiplication and division regarding significant figures?

Back

The result should be reported to the least number of significant figures of any number in the operation.

Front

How should the answer to 3.50 g x 10 g be reported?

Back

The answer should be reported with 1 significant figure.

Front

How should the answer to 85.20 g + 0.129 g be rounded?

Back

The answer should be rounded to two digits to the right of the decimal point.

Front

What is the final answer for 0.29 g x 10.50 g with correct significant figures?

Back

The final answer is 3.0 g².

Front

How do you calculate density?

Back

Density is calculated using the formula: Density = Mass / Volume.

Front

What is the density of an object with a mass of 4.50 grams and a volume of 5.63 mL?

Back

The density is 0.799 g/mL.

Front

What is the final answer for 0.670 m / 24.60 m with correct significant figures?

Back

The final answer is 0.0272.