Mathew

I have the following chemistry question:

A sealed flask contains 5.4 L of a gas at 4.2 atm and 12.0°C. If the density of the gas is 8.6 g/L, what is its molar mass? (You can assume that the gas behaves ideally.)

I used the PV=nRT to determine that I have 0.9698 moles of the gas. But what do I do next in order to find the molar mass?

answers are either:

1) 260 g/mol

2) 8.9 g/mol

3) 1.0 g/mol

4) 48 g/mol

5) 27 g/mol

So i bought an external shotgun microphone which is for my regular camcorder. It has an AV plug where i plug it in. However i dont see much difference in the sound quality. Am i missing a function or do i have to preset something in my camcorder?

To be specific, its the HTDZ HT-81 shotgun microphone and the JVC Everio HM-35 HD camcorder.

Thanks!

So ive been undergoing a procedure with the prescription ointment, betamethasone. It basically helps me loosen the foreskin on the tip of my penis. Surprisingly it worked, and for the FIRST TIME EVER in 16 years, ive been able to pull back the foreskin revealing the head/glans. However, since im 16 and its never been exposed, the head is super sensitive. What can i do to reduce this sensitivity?? Its almost like im undergoing a penis rehabilitation lol. Thanks!

Would you prefer a big fat or chubby guy with a beautifully clean face? Or a slender toned guy with acne?

What other features do you look for?

My girlfriend says her pinky finger is jammed and swollen but it looks much worse. How do we know if it may be broken and much more serious? Thanks.

Do you need to have insurance in order to have a driver's license? Or can you have a driver's license, but no car, and no insurance.

So i'm a minor, and my question is, If I have a CA driver's license, do I still need insurance when I don't have a car?

(Insurance + Car) ....... or ........ (Insurance + License)

Hi, i just bought this gun yesterday off craigslist, and I notice the co2 mag is a bit leaky. How do I fix this?

Also the selector switch is very stiff, How do I fix this also?

What dubstep tracks do you guys like?

If you don't like dubstep, what is your opinion on it?

I love the mainstream skrillex songs and especially tracks by Excision.

I picked up a German Shepherd off the street 3 days ago, and we called the owner to tell them to pick him up. They ended up saying that they could not keep the dog. So the dog is now ours, his name is Tyson. However, he is an old dog about 7-8 years old (says the previous owner). I'm just wondering if it would be possible to train him. Also, for these days that we have had him, he hasn't barked at all or shown any signs of aggression. So I was wondering if there was anything wrong at all. Other than that, Tyson is an incredibly obedient and lovable dog.

Thanks for your opinions and information.

I'm 15 and have acne that makes me tremendously self-conscious about myself, and I really hate it. I use X-Out but have not really seen much improvement. Any suggestions on how to use it effectively? And does anybody have any home recipes that will work? Thanks!

I'm almost turning 15 and may be planning to buy a car sometime when I'm 16. I've already start saving and don't want anything too expensive. It's got to be used and under $5000.

On craigslist, i've been interested at used BMW's and Mustangs that are in the $4000 range. But i hear that sports cars have a higher maintenance fee.

Any suggestions or tips? Thanks.

http://www.youtube.com/watch?v=y1ECEpwBu60&feature...

Just wondering, because if it's bad then i'm not going to do it.

This was such a major part in history, and yet they never teach about it in US Schools? Maybe they do but I don't know, I'm a freshman.

I've watched this movie many times but I don't get how he died.... Maverick and Goose were on the same plane?

Also in the same scene where his plane goes down, are they training with the other planes? Or are they actually trying to fire live rounds at them?

I hate chocolate and soda so much. Do you?

What are some themes from "White Fang" by Jack London? Thanks!

Why do we all say that the world ends on Dec 21, 2012 because that's when the Mayan Calendar ends? How come it is specifically the Mayans? What about Africans, Chinese, Japanese, Greek, Roman, ETC...?

If there were no satellites back then, or anything, how could people make maps of their own countries?

I've seen so many of these on craigslist, but I can't figure out what it is exactly. Anyone have an answer? Thanks!

Hi, I can't figure this out. Someone help me step by step please? Thanks!

Square root of 3 times Square root of 6 = ?