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Chapter 2: Problem 31

Write the abbreviation for each of the following units: a. milligram b. deciliter c. kilometer d. picogram

Short Answer

Expert verified
a. mg, b. dL, c. km, d. pg

Step by step solution

01

Milligram

The abbreviation for milligram is 'mg'.
02

Deciliter

The abbreviation for deciliter is 'dL'.
03

Kilometer

The abbreviation for kilometer is 'km'.
04

Picogram

The abbreviation for picogram is 'pg'.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

milligram abbreviation
Milligrams are commonly used in chemistry and pharmacy to measure small quantities of substances.
Abbreviating units makes it easier and faster to write measurements.
For the milligram, we use 'mg'.
This abbreviation comes from the metric system: 'milli-' means one thousandth, so 1 milligram is one thousandth of a gram or 0.001 grams.
If you have 500 milligrams of a substance, you can write it as 500 mg. This is very convenient and standard worldwide.
deciliter abbreviation
Deciliters measure volumes of liquid and are common in food science and medicine.
We abbreviate deciliter as 'dL'.
The prefix 'deci-' represents one-tenth. Therefore, 1 deciliter is equal to one-tenth of a liter or 0.1 liters.
If you have 3 deciliters of milk, you'd write it as 3 dL.
Using this abbreviation makes managing and recording volumes straightforward and universally understood.
kilometer abbreviation
Kilometers measure distances and are used in various settings including geography and travel.
We abbreviate kilometer as 'km'.
The prefix 'kilo-' means one thousand. Hence, 1 kilometer equals one thousand meters or 1,000 meters.
If a city is 15 kilometers away, you write it as 15 km.
This abbreviation helps convey distance in a clear and standardized way.
picogram abbreviation
Picograms measure extremely small masses and are used in scientific fields like biochemistry.
We abbreviate picogram as 'pg'.
The prefix 'pico-' means one trillionth (1/1,000,000,000,000). Therefore, 1 picogram is one trillionth of a gram, or 0.000000000001 grams.
If you have 250 picograms of a substance, you can write it as 250 pg.
This abbreviation allows scientists to precisely measure and communicate very small quantities.

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Most popular questions from this chapter

A graduated cylinder contains three liquids \(\mathbf{A}, \mathbf{B},\) and \(\mathbf{C}\) which have different densities and do not mix: gasoline \((\mathrm{D}=0.74 \mathrm{~g} / \mathrm{mL}),\) olive oil \((\mathrm{D}=0.92 \mathrm{~g} / \mathrm{mL}),\) and \(\mathrm{milk}\) \((\mathrm{D}=1.04 \mathrm{~g} / \mathrm{mL})\). Identify the liquids \(\mathbf{A}, \mathbf{B},\) and \(\mathbf{C}\) in the cylinder. (2.7)

Calculate the volume of the samples in a. and \(\mathrm{b},\) and the mass of those in c. and d.: a. What is the volume of \(1.22 \mathrm{~g}\) of a solid with a density of \(0.92 \mathrm{~g} / \mathrm{mL} ?\) b. What is the volume of \(0.20 \mathrm{~kg}\) of a solid with a density of \(3.0 \mathrm{~g} / \mathrm{mL} ?\) c. What is the mass, in kilograms, of \(30 \mathrm{~mL}\) of a liquid with a density of \(4.3 \mathrm{~g} / \mathrm{mL} ?\) d. What is the mass, in grams, of \(0.03 \mathrm{~L}\) of a liquid with a density of \(0.83 \mathrm{~g} / \mathrm{mL} ?\)

Use metric conversion factors to solve each of the following problems: a. If a student is \(175 \mathrm{~cm}\) tall, how tall is the student in meters? b. A cooler has a volume of \(5000 \mathrm{~mL}\). What is the capacity of the cooler in liters? c. A hummingbird has a mass of \(0.0055 \mathrm{~kg}\). What is the mass, in grams, of the hummingbird? d. A balloon has a volume of \(3500 \mathrm{~cm}^{3}\). What is the volume in liters?

Indicate if each of the following is answered with an exact number or a measured number: (2.2) a. number of legs b. height of table c. number of chairs at the table d. area of tabletop

A doctor orders \(15.0 \mathrm{mg}\) of codeine. The cough syrup contains codeine at a concentration of \(3 . \mathrm{mg}\) per \(1 . \mathrm{mL}\). How many \(\mathrm{mL}\) of cough syrup should be administered to the patient?
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