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What mass of sodium benzoate should be added to 150.0mL of a 0.15M benzoic acid solution in order to obtain a buffer with a pH of 4.25?

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My friends and I were drinking in our room when our RA caught us. However, he didn't write us up. That was cool of him, but now he is saying that he can write us up whenever for that incident. Is this true?

Alright, I have this reciever, http://www.bestbuy.com/site/Yamaha+-+675W+5.1-Ch.+... And I really want to get the full use out of that, so can anyone help me find a 5 speaker setup that would use a lot of that power? Preferably with a sub.

Alright. I have the Black Ops game. And I attempted to download the first strike map pack, but it didn't work. It said that there wasn't enough space. How exactly does the download work? Does it download onto the COD disk, or onto a hard drive within the PS3?

I heard it was, but I don't want to get into legal trouble.

I am about as white as they come. I'm talkin' piece of paper here. I have never been able to tan, I just turn red, peel, and then go back to white. Is there any natural/non medicated way that I could aid my skin in turning brown, and not red?

I'm 16 and have a 1997 GMC Sierra, and basically love it. However, I am not satisfied with the speaker system, and obviously, as I am 16, what girls think of it is foremost on my mind. Any speaker systems that you consider to be good? I'm not one of the guys that blasts speakers all the time, but when the time comes, I want to be able to. Also, any other ideas would be appreciated. Thanks!

I've really started to enjoy checking out nice cars, although when my friends talk about specifications of these cars, I don't really understand what they are talking about. Could you just give me some broad definitions of typical terms, or show me a site that would give me an in depth look at car specifications? Thanks in advance.

Whenever I enter a disk into the slot, it starts to read it, and then just tells me that the disk can't be read, and to eject it. How can I fix this?

I am approximately 6 ft tall, weigh 160, and bench 180. The other kid weighs about 220, and benches like 145, but he could wrestle me to the ground. What are some good speed combos I could use?

What were some different types of fights that gangs engaged in in the 1950's

What were some street weapons used in the1950's?

I can't find a good list of some of the street weapons used in the 1950's and I need a really good grade on the english report that this is for. I NEED HELP!!!!!!!

I can't find a good list of some of the street weapons used in the 1950's and I need a really good grade on the english report that this is for. I NEED HELP!!!!!!!

I bench about 100 pounds, and my legs are incredibly strong, and can do about 45 push ups without stopping. HELP ME!!!

This is for an english project, and I need to find a list of the weapons used