Q: Which of the following conversions contains the correct number of significant figures? $$24.5 \text{ min} \times \frac{1 \text{ h}}{60 \text{ min}} = $$

$$0.408 \text{ h} ($$rounded to 3 sig figs)

Question 1

How many significant figures are in the measurement 0.00450 g?

Accepted Answer

3

Question 2

Which of the following numbers is correctly rounded to three significant figures?

Accepted Answer

$$0.0453$$

Question 3

A patient is prescribed 5.0 mg/kg of a medication. If the patient weighs 70 kg, how many milligrams of medication should be administered?

Accepted Answer

$$350 	ext{ mg}$$

Question 4

Which of the following conversions contains the correct number of significant figures? $$24.5 	ext{ min} 	imes \frac{1 	ext{ h}}{60 	ext{ min}} = $$

Accepted Answer

$$0.408 	ext{ h} ($$rounded to 3 sig figs)

Question 5

A doctor orders 0.125 g of ampicillin. The liquid suspension on hand contains 250 mg/5.0 mL. How many milliliters of the suspension are required?

Accepted Answer

$$2.5 	ext{ mL}$$

Question 6

What is the correct answer for the addition $$7.5 	ext{ g} + 2.26 	ext{ g} + 1.311 	ext{ g} + 2 	ext{ g}$$, rounded to the correct number of significant figures?

Accepted Answer

$$13 	ext{ g}$$

Question 7

Which of the following is the metric unit paired with its correct abbreviation?

Accepted Answer

milligram / mg

Question 8

Which of the following is the largest unit?

Accepted Answer

kilometer

Question 9

Convert $$6.5 	ext{ cm} to $$inches. ($$1 	ext{ in} = 2.54 	ext{ cm})$$

Accepted Answer

$$2.56 	ext{ in}$$

Question 10

A table lists the density of sugar as $$1.59 	ext{ g/mL}. $$What is the mass of $$2.00 	ext{ L} of $$sugar?

Accepted Answer

$$3.18 	ext{ kg}$$

Question 11

Diamond has a density of $$3.52 	ext{ g/mL}. $$What is the volume in cubic centimeters of a diamond with a mass of $$15.1 	ext{ g}$$?

Accepted Answer

$$4.29 	ext{ cm}^3$$

Question 12

Which of the following is the correct answer for the calculation of a volume (in mL) with measured numbers $$\frac{28.5 	ext{ g}}{1.36 	ext{ g/mL}}$$?

Accepted Answer

$$21 	ext{ mL}$$

Question 13

Which of the following is the metric unit for length?

Accepted Answer

meter

Question 14

A patient receives a dose of $$0.250 	ext{ g} of $$glucose intravenously. If the solution has a density of $$1.15 	ext{ g/mL}$$, what is the volume of solution administered?

Accepted Answer

$$0.217 	ext{ mL}$$

Question 15

Which of the following is the correct answer for the multiplication $$2.4 	ext{ kg} 	imes 1.8$$?

Accepted Answer

$$4.3 	ext{ kg}$$

Question 16

Which of the following is the correct answer for the conversion $$120 	ext{ in} 	imes \frac{1 	ext{ ft}}{12 	ext{ in}} 	imes \frac{1 	ext{ lb}}{1 	ext{ ft}}$$?

Accepted Answer

$$10 	ext{ lb}$$

Question 17

Which of the following is the correct answer for the subtraction $$14.53 	ext{ cm} - 2.4 	ext{ cm}$$, rounded to the correct number of significant figures?

Accepted Answer

$$12.1 	ext{ cm}$$

Question 18

Which of the following is the correct answer for the multiplication $$2.53 	ext{ m} 	imes 1.00 	ext{ m}$$?

Accepted Answer

$$2.53 	ext{ m}^2$$

Question 19

Which of the following is the correct answer for the division $$53 	ext{ cm}^3 \div 2.3 	ext{ cm}^3$$?

Accepted Answer

$$23$$

Chap 2

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