Q: Which of the following is a correct conversion factor for the equality $$1 L$$ $$= 1000 mL$$?

$$\frac{1\ \text{L}}{1000\ \text{mL}}$$

Question 1

A nurse needs to administer 0.250 g of a medication, but only has 50.0 mg tablets available. How many tablets should the nurse give to the patient? (1 g = 1000 mg)

Accepted Answer

$$5.0$$ tablets

Question 2

Which of the following measurements is reported with the correct number of significant figures if the ruler is marked every 0.1 cm and the object ends halfway between 4.5 cm and 4.6 cm?

Accepted Answer

$$4.55 cm$$

Question 3

A patient’s urine has a specific gravity of 1.025. What does this mean about the density of the urine compared to water?

Accepted Answer

The urine is more dense than water.

Question 4

Which of the following is an exact number?

Accepted Answer

$$2.54 cm in$$ $$1$$ inch

Question 5

A sample of metal has a mass of $$48.0 g $$and raises the water level in a graduated cylinder from $$25.0 mL to$$ $$33.0 mL. $$What is the density of the metal?

Accepted Answer

$$8.00 g/mL$$

Question 6

Which of the following equalities is correct for metric units?

Accepted Answer

$$1 m$$ $$= 100 cm$$

Question 7

How many significant figures are in the measurement $$0.00476$$?

Accepted Answer

Three

Question 8

A doctor orders $$0.150 mg of $$Synthroid. If the pharmacy only has $$50.0$$ mcg tablets, how many tablets are needed? (1 mg = 1000 mcg)

Accepted Answer

$$3.00$$ tablets

Question 9

Which of the following is the correct SI unit for mass?

Accepted Answer

kilogram (kg)

Question 10

A nurse measures a patient’s temperature as $$38.6$$ °C. What is this temperature in Kelvin?

Accepted Answer

$$311.8 K$$

Question 11

A student records the mass of a coin as $$5.01 g. $$Which statement is true about the significant figures in this measurement?

Accepted Answer

There are three significant figures.

Question 12

Which of the following is a correct conversion factor for the equality $$1 L$$ $$= 1000 mL$$?

Accepted Answer

$$\frac{1\ 	ext{L}}{1000\ 	ext{mL}}$$

Question 13

A patient’s IV bag contains $$1.5 L of $$saline. How many milliliters is this?

Accepted Answer

$$1500 mL$$

Question 14

Which of the following is a measured number?

Accepted Answer

$$58.0 kg$$

Question 15

A nurse needs to convert $$2.44 m to $$centimeters to record a patient’s height. What is the correct value?

Accepted Answer

$$244 cm$$

Question 16

A sample of cough syrup has a density of $$1.20 g/mL. If a $$patient takes $$2.0$$ teaspoons ($$1$$ tsp $$= 5.0 mL$$), what is the mass of the syrup consumed?

Accepted Answer

$$12 g$$

Question 17

Which of the following is the correct rule for rounding off $$3.145 g to $$two significant figures?

Accepted Answer

$$3.2 g$$

Question 18

A doctor prescribes $$7.5 km of $$walking for a patient. If the patient walks at a pace of $$65 m/$$min, how many minutes will it take to complete the walk?

Accepted Answer

$$115.4$$ min

Question 19

Which of the following is the correct equality for $$1$$ kilogram?

Accepted Answer

$$1 kg$$ $$= 1000 g$$

Question 20

A nurse needs to convert $$1.6$$ days to minutes to schedule medication. How many minutes are in $$1.6$$ days?

Accepted Answer

$$2,304$$ min

Chemistry and Measurements: Core Concepts and Applications

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