1. Matter and Measurements

How many sig figs does each number contain?

a) 100. min                                                          

b) 17.3 x 10³ mL

c) 10 apples

Indicate the number of significant figures in the following: 

A liter is equivalent to 1.059 qt. 

In which of the following pairs do both numbers contain the same number of significant figures?

a. 11.0 m and 11.00 m

b. 0.0250 m and 0.205 m

c. 0.000 12 s and 12 000 s

d. 250.0 L and 2.5 × 10^-2 L

In which of the following pairs do both numbers contain the same number of significant figures?

a. 0.005 75 g and 5.75 × 10^-3 g

b. 405 K and 405.0 K

c. 150 000 s and 1.50 × 10⁴ s

d. 3.8 × 10^-2 L and 3.0 × 10⁵ L

Indicate if the zeros are significant in each of the following measurements:

a. 20.05 °C

b. 5.00 m

c. 0.000 02 g

d. 120 000 yr

e. 8.05 × 10² L

Identify the numbers in each of the following statements as measured or exact:

b. A patient is given 2 tablets of medication.

Identify the numbers in each of the following statements as measured or exact:

a. A patient has a mass of 67.5 kg.

Identify the measured number(s), if any, in each of the following pairs of numbers:

b. 1 table and 4 chairs

Identify the measured number(s), if any, in each of the following pairs of numbers:

a. 3 hamburgers and 6 oz of hamburger

Identify the exact number(s), if any, in each of the following pairs of numbers:

b. 6 nickels and 16 g of nickel

Identify the exact number(s), if any, in each of the following pairs of numbers:

a. 5 pizzas and 50.0 g of cheese

Identify the numbers in each of the following statements as measured or exact:

a. Sandra has a patient with a mass of 67.5 kg.

Identify the numbers in each of the following statements as measured or exact:

b. A patient is given 2 tablets of medication.