 # Study Guide for Crossword Puzzle Essay Example

Satisfactory Essays
423 Words Grammar Plagiarism  Writing  Score Study Guide for Crossword Puzzle Essay Example Study Guide

Acids and Bases: 1. Be able to identify both the Brønsted–Lowry acid and base from a given reaction.
~An acid is a proton donor
~A base is a proton acceptor
H3PO4 + H20 H3O+ +H2PO4-
H3PO4 is an acid so it is a proton donor. It gives its positive atom to the other element 2. Be able to calculate the pH of a solution given [H3O+]
Example: What is the pH of a solution with a [H3O+] of 1 x 10-2 M?
The pH level should equal the exponent number of 2.
Redox Reactions: Be able to identify what is reduced and what is oxidized in a redox reaction. Ex: What is reduced in the following reaction?
2 Bi3+ + 3 Mg 2 Bi + 3 Mg2+.
The reduced element in the following is Bi (Bismuth) because that element is broken down without its charge number.
Boyle’s Law: Be able to apply Boyle’s Law to solve for either pressure or volume
Ex: A sample of helium gas occupies 1245 mL at 705 mmHg. For a gas sample at constant temperature, determine the volume of helium at 745 mmHg.
P1V1=P2V2
If the pressure goes down, the volume goes up.
V2=P1V1/P2
P1=705 mmHg
P2=745 mmHg
V1= 1245 mL
V2= (705)(1245)/745
877725/745=1179 mL=V2
Charles’ Law: Be able to apply Charles’ Law to solve for either volume or temperature (remember to convert to Kelvin)
Example: A gas at a temperature of 95 degrees C occupies a volume of 159 mL. Assuming constant pressure, determine the volume at 15 degree C.
V1=V2
T1=T2

95°C+273=368K= T1
159 mL=V1
15°C + 273=288 T2

V2= (368)(159)/288=204 mL

Ideal Gas Law: 1. Be able to calculate molar mass given density
Example: For a gas at standard temperature and pressure with a density of 2.75 g/L. determine its molar mass.

Standard temperature and pressure occupies a volume of about 22.4 L. This is known as the standard molar volume of a gas.
V=cn (where c is a constant) n is number of molecules 2. Be able to calculate volume or pressure, using PV=nRT
P=pressure, V=Volume, n=number of moles of gas,

## You May Also Find These Documents Helpful

• Good Essays

The purpose of this lab was to determine the effect of temperature on the volume of gas when the pressure is consistent and to verify Charles’ Law. The data from the experiment reveals that as temperature increases, so does volume. This also indicates that as temperature decreases, the volume decreases as well.…

• 640 Words
• 4 Pages
Good Essays
• Good Essays

• describe the effects of this change on the pressure and volume of the gas sample.…

• 838 Words
• 4 Pages
Good Essays
• Satisfactory Essays

How many moles of gas molecules will be present in 5000 L of air at STP?…

• 378 Words
• 2 Pages
Satisfactory Essays
• Satisfactory Essays

The mass of an unknown gas is 11.59 g. The mass of an equal volume of He is 1.45 g. Calculate the molar mass of the unknown gas. 32.0 g/mol…

• 753 Words
• 3 Pages
Satisfactory Essays
• Satisfactory Essays

1. One mole of hydrogen gas has a mass of 2.02 g. Use your value of molar volume to calculate the mass of one Liter of hydrogen gas at STP. The density is in g/L. Compare your value to a literature value? (Consult a hand book or text book)…

• 279 Words
• 2 Pages
Satisfactory Essays
• Satisfactory Essays

2. Given a volume of 1000. cm3 of an ideal gas at 300. K, what volume would it occupy at a temperature of 600. K?…

• 250 Words
• 1 Page
Satisfactory Essays
• Good Essays

4. What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20. (C and…

• 1084 Words
• 5 Pages
Good Essays
• Good Essays

At 7.0ºC, the volume of a gas is 49 mL. At the same pressure, its volume is 74 mL at what temperature?…

• 5843 Words
• 24 Pages
Good Essays
• Better Essays

In comparison to solids and liquids, gases have many distinctive characteristics such as, it’s compressibility and it’s ability to obtain the volume (shape) of its container. Such properties of gases are vital to society and industries for essential science based theory. Boyle’s Law sometimes referred as the Boyle-Mariotte Law is one of several gas laws as well as a special case of the Ideal Gas Law. Generally, Boyle’s laws explain the inversely comparative relationship among the complete pressure and capacity of gas, if the temperature is reserved in stable within a closed system. The mathematical expression for Boyles Law is:…

• 1293 Words
• 6 Pages
Better Essays
• Satisfactory Essays

A gas sample occupies 3.50 liters of volume at 20.°C. What volume will this gas occupy at 100.°C (reported to three significant figures)?…

• 849 Words
• 4 Pages
Satisfactory Essays
• Satisfactory Essays

If I initially have 4.0 L of a gas at a pressure of 1.1 atm, what will the volume be if I increase the pressure to 3.4 atm?…

• 943 Words
• 4 Pages
Satisfactory Essays
• Good Essays

5.The temperature of a 500. mL sample of gas increases from 150. K to 350. K. What is the final volume of the sample of gas, if the pressure in the container is kept constant? 1170ml…

• 581 Words
• 3 Pages
Good Essays
• Good Essays

Molar volume is the name given to the volume that one mole of any gas occupies at standard temperature and pressure. In chemistry, many of the materials worked with are gases. It is often easier to measure the volume of a sample of gas, rather than determine its mass. The main purpose of this lab is to determine the molar volume of hydrogen gas experimentally in order to compare it to the theoretical molar volume of ideal gases. In this experiment, a known mass of magnesium is reacted with an excess amount of hydrochloric acid to produce hydrogen gas. The amount of hydrogen gas produced is collected by the displacement of water. This volume is used to calculate the molar volume of hydrogen gas. This data can then be used to compare the experimental molar volume of hydrogen gas and that of ideal gases at STP (standard temperature and pressure), by first using the Combined Gas Law (P1V1/T1=P2V2/T2) to find the experimental molar volume at STP, followed by the Ideal Gas Law (PV=nRT) to find the molar volume of any gas at STP. The partial pressure of the hydrogen gas must be found before the combined gas law can be used. It is found using Dalton's Law of Partial Pressure (P=PH2+PH2O).…

• 501 Words
• 3 Pages
Good Essays
• Satisfactory Essays

According to Charles’ Law, temperature and volume increase proportionally, as long as chemical amount and pressure remain the same.…

• 301 Words
• 2 Pages
Satisfactory Essays
• Powerful Essays

By combining Boyle’s Law, Charles’ Law and Avogadro’s Law, the General Gas Law (or ideal gas law) is proposed. It reveals the relationship between the three properties of a gas, which is pressure, volume and temperature, in a container. It states:…

• 2729 Words
• 11 Pages
Powerful Essays