$$1.5 \times 10$$^{-12}$$ km^3$

155 pm, $$7.8 \times 10$$^{-8}$$ cm

Question 1

Which metric prefix represents a multiplier of $$10^{-6}$$?

Accepted Answer

micro (\mu)

Question 2

A laboratory sample has a mass of 0.005 kg. Express this mass using the appropriate metric prefix.

Accepted Answer

5 grams (g)

Question 3

Which of the following is the correct scientific notation for 0.000081 m?

Accepted Answer

$$8.1 	imes 10$$^{-5}$$ m

Question 4

A patient receives a dose of 2500 micrograms of medication. What is this amount in milligrams?

Accepted Answer

$$2.5 mg$$

Question 5

Which of the following is the largest quantity?

Accepted Answer

$$1.0 	imes 10^6$ \mu g

Question 6

A room has a volume of $$1.5 	imes 10^9$ cm^3$. What is the volume in km^3$?

Accepted Answer

$$1.5 	imes 10$$^{-12}$$ km^3$

Question 7

Which of the following pairs lists the smaller quantity first?

Accepted Answer

155 pm, $$7.8 	imes 10$$^{-8}$$ cm

Question 8

Convert $$8.7 	imes 10$$^{-4}$$ kg to grams using the correct metric prefix.

Accepted Answer

$$0.87 g$$

Question 9

Which metric prefix would you use to express a distance of $$1.0 	imes 10$$^{-9}$$ meters?

Accepted Answer

nano (n)

Question 10

A scientist measures a sample as $$1.0 	imes 10^6$ mg. What is the mass in kilograms?

Accepted Answer

$$1.0 kg$$

Question 11

Which of the following is the correct conversion for $$1.0 	imes 10$$^{-2}$$ m to millimeters?

Accepted Answer

$$10 mm$$

Question 12

A chemical reaction produces $$1.5 	imes 10^3$ mg of product. Express this in grams using the correct metric prefix.

Accepted Answer

$$1.5 g$$

Question 13

Which metric prefix would you use to express a mass of $$1.0 	imes 10$$^{-3}$$ grams?

Accepted Answer

milli (m)

Question 14

A sample contains $$1.0 	imes 10^9$ nanograms of a substance. What is the mass in grams?

Accepted Answer

$$1 g$$

Question 15

Which of the following is the correct scientific notation for 0.00000045 m?

Accepted Answer

$$4.5 	imes 10$$^{-7}$$ m

Question 16

A medication is prescribed as $$1.0 	imes 10^3$ micrograms. What is the dose in milligrams?

Accepted Answer

$$1 mg$$

Question 17

Which metric prefix would you use to express a length of $$1.0 	imes 10$$^{-2}$$ meters?

Accepted Answer

centi (c)

Question 18

A scientist needs to convert $$6.4 	imes 10^4$ mm to meters. What is the correct value?

Accepted Answer

$$64 m$$

Question 19

Which of the following is the correct conversion for $$1.0 	imes 10^6$ micrograms to grams?

Accepted Answer

$$1 g$$

Question 20

A sample contains $$2.7 	imes 10$$^{-3}$$ meters. Express this in millimeters using the correct metric prefix.

Accepted Answer

$$2.7 mm$$

Metric Prefixes and Unit Conversions in Chemistry

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