Boyle’s Law
1.Example #1: 2.00 L of a gas is at 740.0 mmHg pressure. What is its volume at standard pressure * (740.0 mmHg) (2.00 L) =(760.0 mmHg) (x)
* X =(740 mmHg) (2.00L) / (760.0 mmHg)
Answer :
2. 5.00 L of a gas is at 1.08 atm. What pressure is obtained when the volume is 10.0 L? * 1.08 atm) (5.00 L) =(x) (10.0 L)
* X = (1.08 atm) (5.00 L) / (10.0 L)
Answer:
3. 2.50 L of a gas was at an unknown pressure. However, at standard pressure, its volume was determined to be 8.00 L. What was the unknown pressure? * (x) (2.50 L) = (101.325 kPa) (8.00 L)
* (101.325 kPa) (8.00 L) / (2.50 L)
Answer:
4. A sample gas occupies a volum of 225 ml at a pressure of 720.0 torr and a temperature of 20.0 celcius. Calculate the new pressure if the volume is increased to 350.0 mL, at constant temperature. * P2 = P1V1/V2 = (720.0 torr )(225 mL)/350.0mL

Answer: 463 torr
5. A balloon with a volume of 2.0 L is filled with a gas at 3 atmospheres. If the pressure is reduced to 0.5 atmospheres without a change in temperature, what would be the volume of the balloon? * Vf = (2.0 L)(3 atm)/(0.5 atm)

Vf = 6 L/0.5
Answer: 12 L
* Example #1: A gas is collected and found to fill 2.85 L at 25.0°C. What will be its volume at standard temperature? * Answer: convert 25.0°C to Kelvin and you get 298 K. Standard temperature is 273 K. We plug into our equation like this: *

* Example #2: 4.40 L of a gas is collected at 50.0°C. What will be its volume upon cooling to 25.0°C? * Answer: convert 50.0°C to 323 K and 25.0°C to 298 K. Then plug into the equation and solve for x, like this: *

* Example #3: 5.00 L of a gas is collected at 100 K and then allowed to expand to 20.0 L. What is the new temperature in order to maintain the same pressure (as required by Charles' Law)? * Answer

...Final Examination
Name: Course:
Date:
Final Examination in Statistics (M.A.Ed./M.A.N.)
1.The scores of 15 masteral students in Statistics were 80,85,78,90,91,98,95,98,95,74,71,72,98,99,and 87. Find the measures of central tendency, the range, the variance, and the standard deviation.
2. In the performance evaluation of teachers, if the dean’s evaluation is given a weight of 5, self-evaluation is 2, peer’s evaluation is 2, and student’s evaluation is 1 and the...

...SampleProblems for Speed:
1. Calculate the speed of a dog running through a field if he is covering 23.7 meters in 54 seconds.
2. If a cross country runner covers a distance of 347 meters in 134 seconds, what is her speed?
3. What is the speed of a baseball that travels 49 meters in 2.4 seconds?
4. What is the speed of the horse that runs a distance of 250 meters in 3.5 seconds?
5. The girl runs 136 meters in 30 seconds....

...High-Low Method
The controller of PATAY Hospital would like to come up with a cost formula that links admitting department cost to the number of patients admitted during a month. The admitting department’s costs and the number of patients admitted during the past nine months follow:
Month Number of Patients Admitted Admitting Department’s Cost
April 18 P 15, 600
May 19 P 15, 200
June 17 P 13, 700
July 15 P 14, 600
August 15 P 14, 300
September 11 P 13, 200
October 11 P 12, 800...

...Hypothetical Case # 1: Emergency Contraception
Jeng Jeng is a 19 year-old college student at Universidad de Kounikos. She presents a prescription for four Looveral tablets. The instructions are to take two immediately and two in twelve hours. The pharmacist on duty, Marc, has strong pro-life beliefs. He refuses to dispense the prescription believing that the prescription is being used as an abortifacient. The patient explains that she needs to have the prescription filled soon, as she...

...Sample Test Problems
9.1 Which type of secondary market provides the most efficient market for securities?
9.2 Is preferred stock classified as debt or equity?
9.3 Burnes, Inc. is a mature firm that is growing at a constant rate of 5.5 percent per year. The firm’s last dividend was $1.50. If the required rate of return is 12 percent, what is the market value of this stock assuming dividend growth equals the growth rate of the firm?
9.4 Abacus Corp. will pay...

...Physical Science
Investigating
Boyle’s Law
Contents page:
What does Boyle’s Law state? .....................................................2
An outline of what this project is about....................................2
Title.....................................................................................................2
Investigative question.....................................................................3...

...Express Right
Trial by jury: s 80
Section 80 of the Constitution appears to guarantee a right to trial by jury for offences arising under Commonwealth laws.
Section 80 applies if there is a trial on indictment, but leaves it to the Parliament to determine whether any particular offence shall be tried
on indictment or summarily: Kingswell v The Queen (1985)
• Does not apply to summary offence: R v Archdall & Roskruge; Ex parte Carrigan and Brown (1928)
Consequence of the s 80
• Defendant...

...similar issues. On the other hand, the conflict in “Little Red Riding Hood” is not one with which most readers can identify. Who in their right mind has ever faced a hungry wolf dressed in Grandma’s nightgown and lying in Grandma’s bed? That type of problem clearly isn’t one that most people would share with their therapist! Additionally, that type of conflict, in literary terms, would be characterized as ”man vs. nature,” and actually, dealing with nature or even wild beasts...