Chapter 2

What is the correct answer for (35x0.12345)/6.77?

0.64

(16.83/15)-0.46

0.7

44g is equal to how many oz?

1.6

(4.392g+102.40g+2.51g) what is the answer with appropriate sig figs?

109.30

0.411+9.9+0.8

11.1

A dialysis unit requires 60000mL of distilled water. How many gallons of water are needed? (1gal=4qt)

16

Rank from highest to lowest volume? 100L. 1cL. 1GL. 1ML. 5 million nL 1mL 50 mL

1GL 1ML 100L 50mL 1cL 5 million nL 1 mL

What is the metric relationship between grams and micrograms?

1g = 1,000,000 ug

A brain contains 1.2x10^10 neurons How many sig figs?

2

The time for a nerve impulse to travel from the feet to the brain is 0.50 s How many sig figs?

2

Insulin is a protein that is used by the body to regulate both carbohydrates and fat metabolism. A bottle contains 525mL of insulin at a concentration of 40.0mg/mL. What is the total mass of insulin in the bottle?

21000

What is 6.5m converted to inches?

260

(2610+11.7+0.22) what is the answer with appropriate sig figs?

2622

An adult with the flu has a temperature of 103* F How many sig figs?

3

Round 423.6059 to 3 sig figs

424

The number of significant figures in the measurement of 45.030mm is...

5

How many pounds in 3.5kg?

7.7 lb

6x0.222x7.0

9

400ppm is the same as? A 400mg lead in each gram of soil B 400mg lead in each kilogram of soil C 400g lead in each kilogram of soil D 400ug lead in each milligram of soil E 400ug lead in each kilogram of soil

B

Which of the following measurements are NOT equivalent? a. 25 mg=0.025 g b. 84 cm=8.4 mm c. 183 L=0.183 kL d. 24dL= 2.4 L e. 150 ms=0.150 s

B

Which of the following measurements has three significant figures? a. 0.005m b. 0.510m c. 510m d. 0.051m e. 5100m

B

5.21 cm is the same distance as a. 52.1dm b. 5.21mm c. 5210m d. 0.00521km e. 0.0521m

E

What are the abbreviations for a femtosecond, a gigaliter, and a decimeter?

fs, GL, dm