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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: theo_walcott on January 25, 2008, 01:36:52 AM

Title: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: theo_walcott on January 25, 2008, 01:36:52 AM
How does Na react with H20?
I need the entire detailed explanation and the theories behind it. I would appreciate your kind *delete me* sorry im new here.

Thx alot in advance! yeah its kind of urgent so i hope u guys will explain this confusing concept to me as soon as possible! thank you!
Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: AWK on January 25, 2008, 02:04:28 AM
Search wikipedia and internet
Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: Alpha-Omega on January 25, 2008, 07:59:44 AM
See this post on the site-same question-good explanation:

http://www.chemicalforums.com/index.php?topic=22126.0
Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: Arkcon on January 25, 2008, 08:38:14 AM
I need the entire detailed explanation and the theories behind it.

So you want, what, the quantum chemistry?  Delivered to you in layman's terms?  Most people spend a couple of years in the university gaining the necessary background.

Quote
Thx alot in advance! yeah its kind of urgent so i hope u guys will explain this confusing concept to me as soon as possible! thank you!

An urgently needed random factoid?  Delivered via web forum?  So, what, a barrel full of sodium metal is sliding down a pier into a lake, and you want the theory in hand before it hits the water?

See this post on the site-same question-good explanation:

http://www.chemicalforums.com/index.php?topic=22126.0

Are you the same guy who wrote that original question?  Be honest.  If you are, let's have the whole question, weird radio frequency pseudoscience and all.  We'll try to get to the bottom of it.
Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: P on January 25, 2008, 11:59:46 AM
Theo, for the sake of our country's future, I hope your better at football than you are at chemistry!     :'(
Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: irishnenglish on January 27, 2008, 08:53:15 AM
I need the entire detailed explanation and the theories behind it.



An urgently needed random factoid?  Delivered via web forum?  So, what, a barrel full of sodium metal is sliding down a pier into a lake, and you want the theory in hand before it hits the water?




LOL   good work


but seriously if you want to know what happens

do it in your sink  =]

i believe NaOH is made which is soluble and H2 is produced.
Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: Alpha-Omega on January 27, 2008, 12:37:41 PM
OH CHILREN OF THE CORN.....Like get a GRIP:

Sodium and water do not react to form oxygen.

The reaction of sodium with water is as follows:

2 Na + 2 H2O ----> 2 NaOH + H2

It is a highly exothermic reaction.  Sodium melts at 97.8 °C. The heat transferred to the environment ignites the hydrogen that is produced; and, the hydrogen burns with a bright flame.

In fact, all the alkali metals react with water to produce elementary hydrogen and the corresponding alkali hydroxides.

Reactivity increases with increasing periodic number. Additionally, the metals rubidium and cesium explode spontaneously when brought into contact with oxygen.
Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: Borek on January 27, 2008, 12:48:06 PM
It is a highly exothermic reaction.  Sodium melts at 97.8 °C. The heat transferred to the environment ignites the hydrogen that is produced; and, the hydrogen burns with a bright flame.

Not exactly. Burning hydrogen is almost invisible. What makes the flame so bright is sodium (present in abundance when you react it with water).
Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: enahs on January 27, 2008, 12:52:29 PM
The football comment was not really called for. Not everybody knowns everything, that is why we learn and why we are here to help (and to teach them how to help themselves).
Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: irishnenglish on January 27, 2008, 02:43:23 PM
No-one said o2 was produced


Infact it was me who suggested H2 was produced


look before you judge
Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: Arkcon on January 27, 2008, 03:26:18 PM
No-one said o2 was produced


Infact it was me who suggested H2 was produced


look before you judge

Generally, when performing chemical reactions on the surface of this planet, you are not permitted to discount the presence of oxygen in the air, if oxygen known to react with your starting material.

I mean, you can, but if it were true, you'd have bigger problems to contend with than how to store your elemental cesium or rubidium.
Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: Borek on January 27, 2008, 03:40:17 PM
Oxygen was mentioned by fasttoyotapu in the other thread. Things are getting messy lately  :-\

Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: P on January 28, 2008, 04:54:26 AM
The football comment was not really called for. Not everybody knowns everything, that is why we learn and why we are here to help (and to teach them how to help themselves).

Sorry - it was just a joke. Theo Walcott is Englands future star striker thats all.
Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: Alpha-Omega on January 28, 2008, 05:43:05 PM
Exactly how many of you are paying attention to what is being said in these posts.....you have one kid here want to play with sodium metal and wants to subject it to a high frequency radio beam akin to amperage in a circuit type device....

You have another kid here in a previous post telling you he " needs to know what is going to happen when he reacts solud KNO3 with glycerol....now he is supposed to be doing it with his professor....APPARENTLY NOT....OK no worries there...nothing was going to happen....but the point he he went and bought the stuff on ebay....and did it in the sink...unsurpervised..with no safety equipment....

Then said child comes to this post and let me quote exactly: 

LOL   good work


but seriously if you want to know what happens

do it in your sink  =]

i believe NaOH is made which is soluble and H2 is produced.


Suggests that this reaction be done in the kitchen sink....HELLO!!!!

And I do know exactly how the reaction works considering I had a child in my HS class almost lost an arm....so PAY ATTENTION...

AHHHH and he was indeed a football player....and he was curious...and he wanted to hear things go boom...so he went boom....

None of this is funny or amusing...and kids playing with things they do not understand - the concept of "How Big A Boom Will It Make...does not fly with me..

Curiosity and learning are good things ....not at the cost of safety....good lab practices, good safety, good chemistry....

OH and no kidding hydrogen burns invisibly....really is that a fact (sure would not know that after working with Specilaty Gases for Air-Liquide America for over a year-RIGHT!!!!)....yeah it sure does....and that had nothing to do with that post...the reaction is highly exothermic...it is dangerous and yes hydrogen does burn invisibly...so good the sodium gives the flame its color (AHHH discovery of the millenium)...and it burns very HOT...just ask my student with the third degree burns...

And it should not be performed in a kitchen by a child unsupervised....and other childeren should not go off half-cocked recommending that otheres do such things...

All this pettiness....and the real point all missed...AMAZING...
Title: Re: Metals: PLS HELP ME! NEED HELP URGENTLY
Post by: theo_walcott on February 04, 2008, 11:23:31 PM
Hi everybody. really appreciate the *delete me* anw sorry if i angered anybody. well thx alot for your *delete me* ;)

Yup i will improve on both my chem and soccer!