Cesium 2013

Hey guys! Here's what you need to know for tomorrow :-bd

Homework for today. By the way, the payments for the class pictures are due next Friday. It's P50 a picture so give the payments to LJ... Or Gan. I'm not sure.

Here are your requirements:

What is bangag =))

So guys, our Bio music video is due on Wednesday pa. 'K. Just sharing :))
Bio group 2! We will meet tomorrow at the Q.C. Circle, Tropical Hut, 1pm. Please wear something yellow or green :)) And and bring green colored paper and bond paper :>

Here are the requirements for next week:

Monday
Chem HW - Refer to Nico's post.

Tuesday
Physics LT - Linear Dynamics - Application (One-body system)

Thursday
Chem Post Lab :-bd

Chem Hw:
10.20
A sample of gas occupies a volume of 1248 ft³ at 0.988 atm and 28.0ºC. (a) Calculate the pressure of the gas if the volume is decreased to 978 ft³ while its temperature is held constant. (b) At what temperature in degrees Celsius is the volume of the gas at 1435 ft³ if the pressure is kept constant?
10.21
(a) How is the law of combining volumes explained by Avogadro's hypothesis? (b) Consider a 1.0-L flask containing neon gas and a 1.5-L flask containing xenon gas. Both gases are at the same pressure and temperature. According to Avogadro's law, what can be said about the ratio of the number of atoms in the two flasks?
10.22
Nitrogen and hydrogen gases react to form ammonia gas as follows:
N₂(g) + 3H₂(g) -> 2NH₃ (g)
At a certain temperature and pressure, 1.2 L of N₂ reacts with 3.6 L of H₂. If all the N₂ and H₂ are consumed, what volume of NH₃ at the same temperature and pressure will be produced?
10.28
For an ideal gas, calculate the following quantities: (a) the pressure of the gas if 0.215 mol occupies 338 mL at 32ºC; (b) the temperature (in kelvins) at which 0.0412 mol occupies 3.00 L at 1.05 atm; (c) the number of moles in 98.5 L at 236 K and 690 torr; (d) the volume occupied by 5.48 x 10^-3 mol at 55ºC and a pressure of 3.87 kPa.

page 399
10.9
The typical atmospheric pressure on top of Mt. Everest (29,028 ft) is about 265 torr. Convert this pressure to (a) atm; (b) mm; (c) pascals; (d) bars.

10.10
Perform the following conversions:
(a) 2.44 atm to torr;
(b) 682 torr to kPa;
(c) 776 mm Hg to atmospheres;
(d) 1.456 x 10⁵ Pa to atmospheres;
(e) 3.44 atm to bars

10.19
A fixed quantity of gas at 23ºC exhibits a pressure of 748 torr and occupies a volume of 10.3 L. (a) Use Boyle's law to calculate the volume the gas will occupy at 23ºC if the pressure is increased to 1.88 atm. (b) Use Charle's law to calculate the volume the gas will occupy if the temperature is increased to 165ºC while the pressure is held constant.

Just remember that we have to submit the answers for Chapters 2-4 of Greece tomorrow. Together with it is a HW Quiz.