Basic Chemistry

Karen Timbelake, William Timberlake

Chapter 2

Chemistry and Measurements - all with Video Answers

Educators

Section 1

Units of Measurement

Problem 1

Give the abbreviation for each of the following:
a. gram
b. liter
c. degree Celsius
d. pound
e. second

Patsy Naomi

Patsy Naomi

Numerade Educator

Problem 2

Give the abbreviation for each of the following:
a. kilogram
b. kelvin
c. quart
d. meter
e. cubic meter

Ronald Prasad

Numerade Educator

Problem 3

State the type of measurement in each of the following statements:
a. I put $12 \mathrm{~L}$ of gasoline in my gas tank.
b. $\mathrm{My}$ friend is $170 \mathrm{~cm}$ tall.
c. We are $385000 \mathrm{~km}$ away from the Moon.
d. The horse won the race by $1.2 \mathrm{~s}$.

Ronald Prasad

Numerade Educator

Problem 4

State the type of measurement in each of the following statements:
a. I rode my bicycle $15 \mathrm{~km}$ today.
b. My dog weighs $12 \mathrm{~kg}$.
c. It is hot today. It is $30{ }^{\circ} \mathrm{C}$.
d. I added $2 \mathrm{~L}$ of water to my fish tank.

Patsy Naomi

Numerade Educator

Problem 5

State the name of the unit and the type of measurement indicated for each of the following quantities:
a. $4.8 \mathrm{~m}$
b. $325 \mathrm{~g}$
c. $1.5 \mathrm{~mL}$
d. $4.8 \times 10^{2} \mathrm{~s}$
e. $28^{\circ} \mathrm{C}$

Ronald Prasad

Numerade Educator

Problem 6

State the name of the unit and the type of measurement indicated for each of the following quantities:
a. $0.8 \mathrm{~L}$
b. $3.6 \mathrm{~cm}$
c. $4 \mathrm{~kg}$
d. $3.5 \mathrm{~h}$
e. $373 \mathrm{~K}$

Ronald Prasad

Numerade Educator

Problem 7

On a typical day, medical personnel may encounter several situations involving measurement. State the name and type of measurement indicated by the units in each of the following:
a. The clotting time for a blood sample is $12 \mathrm{~s}$.
b. A premature baby weighs $2.0 \mathrm{~kg}$.
c. An antacid tablet contains $1.0 \mathrm{~g}$ of calcium carbonate.
d. An infant has a temperature $39.2^{\circ} \mathrm{C}$.

Patsy Naomi

Numerade Educator

Problem 8

On a typical day, medical personnel may encounter several situations involving measurement. State the name and type of measurement indicated by the units in each of the following:
a. During open-heart surgery, the temperature of a patient is lowered to $29^{\circ} \mathrm{C}$.
b. The circulation time of a red blood cell through the body is $20 \mathrm{~s}$.
c. A patient with a persistent cough is given $10 . \mathrm{mL}$ of cough syrup.
d. The amount of iron in the red blood cells of the body is $2.5 \mathrm{~g}$.

Patsy Naomi

Numerade Educator