Q. 2.3 - An Introduction to General, Organic, and Biological Chemistry

Question

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

Step-by-Step Solution

Answer

a. The type of measurement is volume.

b. The type of measurement is length.

c.  The type of measurement is length.

d. The type of measurement is time.

Part (a) step 1: Given Information

We need to find the type of measurement. 

Part (a) step 2: Explanation

We need to explain what $12 L$means. $L$ is an abbreviation for a liter, which is the metric unit of volume liter (L) is equal to one cubic decimeter ($d{m}^3$) and to a thousandth of a cubic meter $\left(m^3\right)$.

Therefore, the type of measurement for this statement is volume.

Part (b) step 1: Given Information

We need to find the type of measurement. 

Part (b) step 2: Explanation

Now, $170 cm$means. cm is an abbreviation for a centimeter, which is the unit of length. A centimeter (cm)is equal to a hundredth of a meter (m), the SI metric unit of length.

Therefore, the type of measurement for this statement is length.

Part (c) step 1: Given Information

We need to find the type of measurement. 

Part (c) step 2: Explanation

Now, let's explain what $385000 km$ means. Km is an abbreviation for a Kilometer, which is the unit of length Kilometer(km) is equal to one thousand meters (m), which is the SI unit of length.

Therefore, the type of measurement for this statement is length.

Part (d) step 1: Given Information

We need to find the type of measurement. 

Part (d) step 2: Explanation

Here, make understand what $1.2 s$ means $s$ is an abbreviation for a second, which is the SI and metric unit of time.

So, the type of measurement for this statement is time.