Q: If you have a concentration of $5.71$ ppb, what is this value in $rac{kg}{b5L}$?

$5.71 imes 10^{-12} rac{kg}{b5L}$

Question 1

Which metric prefix corresponds to $10^6$?

Accepted Answer

mega

Question 2

A solution has a concentration of 2.50 parts per thousand (ppt). Express this concentration in $rac{pg}{dL}$, assuming the density of the solution is $1.00 rac{g}{mL}$.

Accepted Answer

$2.50 	imes 10^6 rac{pg}{dL}$

Question 3

Which of the following is the correct scientific notation for the prefix 'nano'?

Accepted Answer

$10^{-9}$

Question 4

If you have a concentration of $5.71$ ppb, what is this value in $rac{kg}{ b5L}$?

Accepted Answer

$5.71 	imes 10^{-12} rac{kg}{ b5L}$

Question 5

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

Accepted Answer

milli

Question 6

A laboratory sample contains $1.0 	imes 10^{-6}$ moles of a substance. Which metric prefix best describes this quantity?

Accepted Answer

micro

Question 7

Convert $2.5$ mg to grams using metric prefixes.

Accepted Answer

$2.5 	imes 10^{-3}$ grams

Question 8

Which of the following is the correct order of metric prefixes from largest to smallest?

Accepted Answer

mega, kilo, centi, milli

Question 9

A solution is measured as $1.0 	imes 10^{-3}$ mol/L. Which metric prefix could be used to express this concentration?

Accepted Answer

milli

Question 10

If a sample contains $1.0 	imes 10^{-12}$ grams of a compound, what is the appropriate metric prefix for this mass?

Accepted Answer

pico

Question 11

Which metric prefix is used for $10^{-2}$?

Accepted Answer

centi

Question 12

A chemist needs to convert $0.005$ liters to microliters. What is the correct value?

Accepted Answer

$5.0 	imes 10^{3}$  b5L

Question 13

Which of the following is the correct scientific notation for the prefix 'femto'?

Accepted Answer

$10^{-15}$

Question 14

A sample contains $2.0 	imes 10^{3}$ nanograms of a substance. How many micrograms is this?

Accepted Answer

$2.0 	imes 10^{0}$  b5g$

Question 15

Which metric prefix would you use to express a length of $10^{-12}$ meters?

Accepted Answer

pico

Question 16

A solution contains $1.0 	imes 10^{-6}$ grams of solute per liter. What is this concentration in $rac{ b5g}{L}$?

Accepted Answer

$1.0 rac{ b5g}{L}$

Question 17

Which metric prefix is used for $10^{-6}$?

Accepted Answer

micro

Question 18

A sample contains $1.0 	imes 10^{-3}$ liters. How many milliliters is this?

Accepted Answer

$1.0$ mL

Question 19

Which of the following is the correct scientific notation for the prefix 'kilo'?

Accepted Answer

$10^{3}$

Question 20

A solution contains $1.0 	imes 10^{-9}$ grams of solute per liter. What is this concentration in $rac{ng}{L}$?

Accepted Answer

$1.0 rac{ng}{L}$

Metric Prefixes and Unit Conversions in Analytical Chemistry

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