habitxo asked:


I’m extremely rusty in chemistry seeing as how I took Chem111 during my freshman year and am now a junior taking Chem112 and am having problems with this problem.

Calculate the energy released for an electron in the hydrogen atom that undergoes a transition from n = 2 to n = 4.

Multiple Choice Answers:
a. 4.09 X 10-19 J
b. 8.39 X 10-20 J
c. 7.46 X 10-32 J
d. 3.29 X 10-18 J
e. 5.39 X 10-21 J

Now, am I doing this right and using the correct formula?

I’m using the formula Ephoton = hv = hRH (1/n^2(low) - 1/n^2(high)) where hRH is 3.290⻪^15 s^-1

so I get:
hv=3.290⻪^15 s^-1 (1/4 - 1/16)
hv=3.290/0.1875
hv=17.54667
conversion to Joules:
17.54667 x 6.2415⻪^18 = 1.095 x 10^20???

It’s all wrong so I threw it up there for someone to pick it apart and show me where I was wrong and if you could kindly show me the correct way, thanks!

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bjonesplumb asked:


How did it work if at all?

Create a video blog

Quinn C asked:


I′ve got an Acura Integra and I detest paying so much for gas and going green is awesome.

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john m asked:


doing a search for electric cars I come up with tons of conversions available as well as some very nice production models coming out soon - both reasonably priced and also high zoot. So much less maintenance, cheaper too run, and no emitions at all. If youre keeping within a hundred miles of home, as everyone almost always does, why not go electric?
And what happened to the ethenol fuel cell? simpler than hydrogen in every way.
I feel it’s a marketing hype - misdirection from what is really “green” and not just “greener”
A hybrid is just a car with good gas mileage.
I’ll find you an electric car that suits everything you want -try me!
johnfrancismurphy2003@yahoo.com

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Daniel Abraham asked:


The world is a mess.Priceses are going up.The environment is going worse.Species are dying and in the middle of it all is us hurting over the cost at the gas pump.

Well now you can do something about it.Hydrogen cars are very much in the news these days.Now you can become a part of the global trend for saving money while helping the environment.

CAN WATER REALLY POWER A CAR?

I MEAN IS THIS FOR REAL

The answer is YES.Water is a supplement of gasoline or diesel fuel that increases mileage tremendously.www.cbrecommended.com/autos/cars.html  will show you how to use a little electricity out of your car battery to separate water into a gas called (HHO).

HHO means 2 parts hydrogen and 1 part oxygen.HHO is also called BROWN’S gas or hydroxy and the end of the gas is just water that burns beautifully.The technology is already running in many cars

www.cbrecommended.com/autos/cars.html

HHO gas is 3 times more potent than gasoline and that is faster growing trend for bossting mileage and performance.This works in any weather and road conditions.

This small simple hydrogen generator system is easy to install into your engine and can improve your engine mileage between 15-50%.

Burning water for gas is a proven technology that is guaranteed to lower fuel costs,increase gas mileage and help the environment.The only problem is until recently this technology was too expensive for the average car owner to implement.You can easily spend over $2000 to have a professional complete the conversion for you.

www.cbrecommended.com/autos/cars.html

But recently there are corp of reasonable priced conversion -kit guides that provide simple step by step instructions on how to convert it by your self.

These guides use easy to find ,low cost materials and don’t require technical experience.We looked over the market today to find the best guides available.

From our point of view we figure out that this technology actually works and if you pick the right guide you’ll be up and running with in few hours and for less than $100.

WATER CAR PRO

***— Still the best single water conversion guide on the market in 2008.This is the easiest guide we came across.It will take just half a day to source the parts and get fully installed.This guide assumes that you have no knoweldge about cars at all.Their technical support is one of the best.

This conversion guide offers an 8 week money back guarantee.So there is nothing to lose especially that this device can be easily removed as it can be easily installed.

This device works on all kind of cars,trucks,vans and SUV.It works with any gas or diesel powered cars.Even it’s possible to convert a fuel injected car.They are running an advertising for a limited time for $47.Take a look for your self because i don’t know when they will go back to the regualer price of $197. 

WATER 4 GAS

Our second pick uses the same HHO conversion techniques as out top pick and again we were impressed by the set up cost and the fast support money back guarantee.This guide also includes two bounses:

1.How to get the IRS to pay for your up grade?

2.How to make $300 installing the system for others,arguably worth the cost for the guide on their own?

All in all it is a great package which means you can be enjoying massive fuel saving for very little very quickly.The only thing we found is the directions were a little hard to follow .There price is a little bit more then our first pick and that’s how this business is.There conversion -kit cost $97 down from $297 for a short time and it will and i mean i will go up again.

RUN YOUR CAR WITH WATER

We found run your car with water to be very easy to understand .Included is simple step by step instruction and pictures to pack it up and help you understand the whole process.The equipment and tools really works and the set up cost is affordable will under $100.

There conversion -kit cost $50 down form $297 also for a short period of time.So grab yours today.

The only reason the priceses are down is because there is a promotion period for these conversion-kit guides and once it’s over the price will go back to normal.

All of these conversion-kits will cut fuel costs by up to 60%,clean up your engine deadly CO2 emission and enhance your engine power all with WATER.

www.cbrecommended.com/autos/cars.html

Water is the solution to our energy problems.

Petrol dependency of the US is a National Security Hazard.

The immediate solution to the energy crisis and smog problems is this DEVICE

 

 



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