I bought an iPhone 4S but having some issues?

So I bought an iPhone 4S the other day from a kid, it didn't seem sketchy so I went for the bargain. When I turn the iPhone on it was locked and everything, so I'd figure it's an easy fix to restore it. But as soon as I restored it and everything turns out that the iPhone is linked to an Apple ID. I'd figured the guy forgot to log out so I asked if he could then ended up telling he found it and sold to me. -.- so my question. Is there a way to remove the Apple ID that it's linked to so I can start using it? It has the iOS 7? I don't know I just want to use it. I didn't know it was stolen. I feel bad but i don't know… Help?

How to turn certain iCloud features off?

I have everything on iCloud turned off (except find my iphone/ipad/ipod), but my iTunes Radio stations are showing up on my other family members devices, and theirs are on mine. It's just iTunes Radio. Help! I already checked all our ios devices settings but nothing is there! Should I go to iCloud control panel on my PC?

How much is the iPhone 3G worth?

I've had an iPhone 3G for about 2 years now, and I think it's 16g. I've now got the latest software on the iPhone 4S and I was just wondering how much I would get for this 3G phone? My friend said ill only probably get £20 from Carphone Warehouse?

It's a very slow phone, but other than that it's in great condition, so scrapes on screen or anything and still have the original box and charger etc.

How to get soap out of my iPhone?

So last night I went to a foam party and the bag I had my stuff in broke and my phone got soaked. I took it home as soon as I could (which was a couple hours, I'll be honest) and rinsed it in alcohol and then popped it in the bag of rice. It looks like its drying pretty good- the water is out of the camera and everything.
I'm wondering if I can plug it in and turn it on, as I desperately need my phone today because somebody is going to try and get in touch with me and I really need to take that call.
Also, the linings in the headphone and charging things are white, somebody told me if they were pink that was a big problem, but they're white.
Do you think the battery is fried? And should I try to plug it in?
Also if I take it to the Sprint store in the event that it is fried completely, what should I do/say so they'll get me a replacement phone? I've gotten replacement phones for free there before but I'm pretty sure water damages work differently.

Will My iTunes Be Wiped Completely?

My laptop is really slow and I bet there's like a ton of viruses and bugs. I was wondering if i completely wipe my laptop, including my iTunes (on laptop), when I sync my iPhone back into my laptop after wiping the laptop, will my songs still be on my iTunes or will all my songs be lost? To put it in simpler words, if I synced my iPhone that has lots of songs already on it, to an iTunes which is empty, will I lose all my songs on my iPhone? Hope you guys know an answer because I really want to wipe my laptop but as I said, my iPhone is more important and I have spent quite a lot of money on the songs I have bought! Thanking you guys so much! You don't know how much I appreciate it if you even just have an idea.