Gas Laws/Acids and Bases
C2H4O2+NaHCO3--->NaC2H3O2+H2O+CO2
Pressure.Gases are the only state of matter that can be compressed very tightly or expanded to fill a very large space. Pressure is force per unit area. The earth's gravity acts on air molecules to create a force, that of the air pushing on the earth. This is called atmospheric pressure. The units of pressure that are used are pascal (Pa), standard atmosphere (atm), and torr. 1 atm is the average pressure at sea level. It is usually used as a standard unit of pressure. The SI unit though, is the pascal. 101,325 pascals equals 1 atm. For laboratory work the atmosphere is very large. A more convenient unit is the torr. 760 torr equals 1 atm. A torr is the same unit as the mmHg (millimeter
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The Ideal gas law is the equation of state of a hypothetical ideal gas. It is a good approximation of the behavior of many gases under many conditions, although it has several limitations. It was first stated by Émile Clapeyron in 1834 as a combination of the empirical Boyle's law, Charles' law and Avogadro's Law.
An ideal gas can be characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them may be deduced from kinetic theory and is called the Ideal Gas Law.
The Ideal Gas Law: PV=nRT=NkT n = number of moles
R = universal gas constant = 8.3145 J/mol K
N = number of molecules k = Boltzmann constant = 1.38066 x 10-23 J/K = 8.617385 x 10-5 eV/K k = R/NA
NA = Avogadro's number = 6.0221 x 1023
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Standard Atmospheric pressure in these U.S. common units is 14.7 lb/in2, so this must be added to the gauge pressure above to get the absolute pressure.
Pressure Volume Temperature Relationships. Boyle's Law: The Pressure-Volume Law. “Boyle's law or the pressure-volume law states that the volume of a given amount of gas held at constant temperature varies inversely with the applied pressure when the temperature and mass are constant.”
Another way of describing it is saying that their products are constant.
When pressure goes up, volume goes down. When volume goes up, pressure goes down.
P1V1=P2V2=P3V3
This equation tells that the product off the initial volume and pressure is equal to the product off the volume and pressure after a change in one of them under constant temperature. “For example, if the initial volume was 500 mL at a pressure of 760 torr, when the volume is compressed to 450 mL, what is the pressure?
Plug in the values:
P1V1 = P2V2
(760 torr)(500 mL) = P2(450 mL)
760 torr x 500 mL/450 mL = P2 844 torr = P2
The pressure is 844 torr after
• These particles are much smaller than the distance between particles, therefore the volume of a gas is mostly empty space and the volume of the gas molecule themselves is negligible. • There is no force of attraction between gas particles or between the particles and the walls of the container. • Collisions between
First it is organized into one chapter for each state of matter. Then it then has two additional chapters, one explaining the transition between states of matter and one hiliting the uses of each state. This resource rich book includes all of the necessary information to serve as a science reference for all three states of matter. It uses scientific terms yet keeps the text simple and clear. This book is also filled with fantastic pictures showing a variety of real world examples and up close scenarios where solids, liquids and gasses are in their transition phase.
Understanding respiratory volumes, capacities, and measurements will help me perform my job as a medical assistant because they are significant being a medical assistant. First of all, when the patient is on the bed, I will measure the respiratory rate while he/she is at relaxation. In the next, I will observe the rise and fall of the victim 's chest and count the number of respirations for one full minute. Then, I will record the current time, respiratory rate and respiratory characteristics. Spirometry is used diagnose conditions that affect breathing such as asthma, pulmonary fibrosis, and cystic fibrosis.
2 ½ tab divided in 2 pc 19.5 49.5 ½ tab divided in3 pc 21.4 37.11 ½ tab 19.5 53.22 3 ½ tab divided in 2 pc 19.6 48.41 ½ tab divided in 3 pc 20.6 37.30 AVG ½ tab 18.9 53.51 ½ tab divided in 2pc 19.5 49.09 ½ tab divided in 3pc 20.9
FOV Dia.(mm) FOV Area (mm^2) 10 10 10 100 2mm 4mm^2 20 20 10 200 1mm 1mm^2 40 40 10 400 .5 mm
Lung volume and lung capacity are two measurements of respiratory health and measured during pulmonary functions tests. It is show the physical condition of the lungs. Pulmonary ventilation, or breathing, is the process of air flowing into the lungs during inspiration (inhalation) and out of the lungs during expiration (exhalation). Air flows because of pressure differences between the atmosphere and the gases inside
For quarter one, I went on a virtual field trip to the Sterling Weather Center. I experienced reading about how the forecasters forecast weather and the vast amount of tools they use. I read about what all the tools did and why it was important to use all the different tools. I also discovered what was so important and special about all of the weather tools. There are 122 field offices that are used to collect data for the weather.
The potential space between the instinctive and parietal pleurae is known as the intrapleural space. The intrapleural and intrapulmonary pressures fluctuate amid ventilation. The intrapulmonary pressure is subatmospheric amid inspiration and more prominent than the atmospheric pressure amid expiration. Pressure changes in the lungs are delivered by varieties in lung volume, as per the opposite relationship between the volume and pressure of a gas portrayed by Boyle's law. The mechanics of ventilation are affected by the physical properties of the lungs.
On January 18, 2015, the New England Patriots and the Indianapolis Colts played in the AFC Championship game in a chilly temperature of 51°F. The Patriots were accused of cheating when, at half time, 11 of their 12 game balls were found to be two pounds psi less than the regulation size of 12.5 to 13.5 psi. Although the balls are gauged 2 hours and 15 minutes prior to the game, they are returned to the teams before the game started. Based on extensive research and data, the Patriots’ balls were tampered with prior to the game. Objects with gaseous interiors have a tendency to decrease in pressure when exposed to cold temperatures but the decrease will only be minor.
Many processes across base requires hazardous chemical interaction. Knowing if a chemical is hazardous is key to keep Airmen safe and the work environment healthy. The Hazardous Communication Standard defines the following hazards: Physical hazards - a chemical for which there is valid scientifically evidence that it is an agent or activity posing a potential hazard to a person or property. Most common are: • Flammable o Aerosol – a mist yielding a flame projecting over 18 inches at full valve opening o Gas – a gas at ambient temperature and pressure, forms a flammable mixture with air at a concentration of 13 percent by volume or less o Solid – a solid other than a blasting agent or explosive that is liable to cause fire through friction • Explosives – a
I predict that the more baking powder added to the vinegar, the more reaction will take place causing for more gas to be produced per 10 seconds. There will be a gradual decrease in difference between volume in gas per 10 seconds over the duration of time. I predict that the more baking powder is added, the more gas will be produced because there is more vinegar to react with baking powder The chemical name for baking powder is sodium bicarbonate (NaHCO3) and vinegar is acetic acid
Microeconomics ECON212 -1504B-01 Instructor: Joseph Parisi Unit 2- Elasticity Amanda Kranning November 2015 In the laws of economics, when the price of an item goes up, the quantity of demand will decline. Elasticity becomes an integrant part by determining the response of this occurrence. The measurement in change in the quantity demanded in response to change in price is call elasticity for demand.
Bernoulli’s theorem is a special application of the laws of motion and energy. The principle equation describes the pressure measured at any point in a fluid, which can be a gas or a liquid, to the density and the velocity of the specified flow. The theorem can be explained by the means of imagining a particle in a cylindrical pipe. If the pressure on both sides of the particle in the pipe is equal, the particle will be stationary and in equilibrium.
However, negative pressure ventilators are not used much anymore, and have been replaced by positive pressure ventilators. This type of ventilator forces air into the lungs. Once the lungs have been inflated, the air pressure stops, allowing the lungs to deflate and force the air back out of the lungs. There are two main types of positive pressure ventilators: one is a simple face mask or tube going into the trachea that can be used in emergency situations by a doctor or nurse squeezing a bag at regular intervals. The second type is a large full-scale ventilation machines that can keep patients alive through major surgery.
so when you multiply the 2.9 by 2 it gives you 5.8 cm3 which was my result. As the voltage increases the volume of hydrogen and oxygen increases. The standard deviation when I used 9 volts for hydrogen it was 0.7 + 0.23= 0.93 and 0.7-0.23= 0.47 so the range of values is between 0.47 cm3 to 0.93 cm3. When I used 9 volts for oxygen it was 0.3+0.12=0.42 and 0.3-0.12=0.18 so the range of values is between 0.18 cm3 to 0.42 cm3.