Chemistry Help Please Hey Basil :D, Sorry but I'm kind of having a little trouble on this section called "Kinetic Theory of Gases". I was wondering if anyone can help me out on some problems which ask for equations. I'm confused on how to g
Chemistry Help Please 3 Hi everyone, I need some help on a Calorimetry/Thermodynamics question. I have an exam coming up soon and I don't understand this. If you can show your steps and explain where it says to explain, that will be much appreciated it. Thank you! 1) (a) A sample of gas occupies a volume of 1.50 L when its pressure is 2.00 atmospheres. If the gas is allowed to expand, isothermally, against a constant external pressure of 1.00 atmospheres, what will be the amount of (i) mechanical work energy and (ii) the amount of heat energy that will have to be exchanged between the gas and its surroundings? What will be the value of Delta E for this process? Briefly explain how you arrive at your answers. (b) If the same amount of gas, a
Chemistry Born-Haber Cycles Help Hey Basil, in need of some chemists :D. I have a couple problems regarding Born-Haber Cycles and I am confused about what to do. I don't really know how to go about arriving at the answer and how to write the equations which it asks to do. If someone can maybe help me solve these I will greatly appreciate it. I'm sorry, I feel like such a bother, it's just that I don't get these types of problems =(. Here are some of my problems that I am having trouble with. There were 10 problems total and I managed to do six of them. These four; however, have got me stumped. :/ : 1) Given the following information, find the lattice energy for LiF (s). Enthalpy of sublimation of Li (s) = 161 kJ/mol First Ionization energy
Chemistry Help Please Balmer, Lyman, Photoelectric Effec? Hey Basil :), I'm stuck on some of these Chemistry questions and would like to know how to do them by step by step if possible. I have a test coming up soon so I would really appreciate any help. Thanks. 1) Use the Balmer formula to calculate the wavelength of light that will be emitted when an electron, in a hydrogen atom, changes its energy from that of orbit n=6 to that of orbit n=2. I think the Balmer formula is : 1/lambda=1/91.10nm x [1/2^2 - 1/n^2] <---- That is that the worksheet lists it as. I need to use that formula to solve this. Do I just plug in 6 to n^2? I'm not sure since it might be wrong. 2) A line in the Lyman Series has a wavelength of 97.17 nm. From which energ
Chemistry Help Please Calorimetry Help? Hi Basil ;), I need some help on two Calorimetry questions. I have an exam coming up soon and I don't understand this. If you can show your steps that will be much appreciated it. Thank you! 1) Predict the signs of 'q' and 'w' for each of these processes. Explain your reasoning. (a) I2 (s) --> I2 (g) (b) CH4 (g) + 2O2 (g) --> CO2 (g) + 2H2O (l) 2) (a) A sample of gas occupies a volume of 1.50 L when its pressure is 2.00 atmospheres. If the gas is allowed to expand, isothermally, against a constant external pressure of 1.00 atmospheres, what will be the amount of (i) mechanical work energy and (ii) the amount of heat energy that will have to be exchanged between the gas and its surroundings? What
Physics Fluids Help Hey, I was wondering if anyone could check if I'm correct on these multiple choice answers. Thanks for any help, I appreciate it.
What piercings do you have? Haii basil, Just wanna know what piercings u have,had, plan to get, etc. for me, I have my second holes on both my ears and belly button. :)
Where are you the most ticklish? What's up basil :), Where are you the most ticklish? I am most on my stomach and feet :(
New MMOs to Play Hey Basil, I recently got really bored of the games I have played, such as Maplestory. I am looking for new MMO's of any genre really, shooters, rpgs, action mmos, etc. I was wondering if anyone could suggest a game that is free to play and somewhat popular so it has a growing community. Also, if anyone wants to play, feel free to suggest anything we can play together. And I also have a gaming computer so it could be any game really. Games I have played: TERA Vindictus Dragon Nest Maplestory Blacklight Retribution Neverwinter Elsword Mabinogi League of Legends Path of Exile TF2 Planetside 2 Tribes Ascend Rift C9 Thanks for any suggestions :).
Quick Physics Help Please Hey Basil, I've been at this problem for quite a while now and I can't seem to figure out how they got to the answer. Here is the problem: In the figure, a small block of mass m = 0.014 kg can slide along the frictionless lo
Chemistry Is my answer correct? Photoelectric Effect? Hey Basil, The threshold wavelength for chromium is 280 nm. When light of a certain frequency shone on a piece of chromium, electrons were ejected whose velocities were 894000 m/s. What was the frequency of the light? What I did was divide 894000 m/s by 280 nm. Before I did that I converted nm to m so 280 nm was 2.8 x 10^-7 m. So: 894,000 m/s / 2.8 x 10^-7 m = 3.19 x 10^12 Hz or 3.2 x 10^12 Hz. Is my answer correct regarding the question? If not, do you know which way to do it is correct? Thanks so much.
List Your Piercings Haiiii basilers, Let's start a piercings thread. What piercings do you guys have, had, or plan to get? For me, I have my second holes on both ears and my belly button. I'm also planning on getting another piercing in my belly button, but on the bottom. :D
Chemistry Equations Help Hey everyone, I did some of the problems that I listed in my previous thread, however, I'm still stuck on these problems which require me to write expressions. Does anyone know the equations I need to write for these problems
Quick Chemistry Help Hey Basil, I need some help on some Chemistry problems, their pretty simple to answer but I don't know how to go about doing them. Any help will be appreciated. Thanks so much. =) 1) An electron is designated as being 'in' a '4d' orbital. Write down all of the possible values for the four quantum numbers for the electron. 2) Which energy sub-levels are being filled in the Group 16 elements? 3) Write down the complete electron configuration of each of the following. (I don't know how to make the orbital arrows in the boxes, but I do know the regular electron configuration). a) Na b) Fe2+ c) O d) Cr 4) Which is most likely to be more metallic: H or Fe? 5) Predict the missing properties for the elements in the following ta
Quick Chemistry Help Please Hey everyone, I have a quick question. Can someone give me the explanation to this question? I don't quite understand it and need to study it for a quiz coming up. Thanks so much. It says: Describe the bonding in the azide ion (NNN-) (The middle N is underlined) in terms of a sigma-bonded framework and a delocalized pi-bonded system. Thanks again. :)
Piercings What do you have? Haiiii basilers, hows it going? Let's start a piercings thread. What piercings do you guys have, had, or plan to get? For me, I have my second holes on both ears and my belly button. I'm also planning on getting another piercing in my belly button, but on the bottom. :D