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Topic: Sodium-Water reaction  (Read 10580 times)

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Offline fasttoyotapu

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Sodium-Water reaction
« on: January 21, 2008, 04:37:08 PM »
Hey there,

Under what conditions can 2Na + 4H2O bond as 2NaHO + 2H2O + O2

Offline Kryolith

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Re: Sodium-Water reaction
« Reply #1 on: January 21, 2008, 04:42:04 PM »
What's the background of the question? Na + water don't react to oxygen.

Offline fasttoyotapu

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Re: Sodium-Water reaction
« Reply #2 on: January 21, 2008, 05:33:54 PM »
OOPS!!  ::)

My bad,  2Na + 4H2O --> 2NaHO + 2H2O + H2?

Offline Alpha-Omega

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Re: Sodium-Water reaction
« Reply #3 on: January 21, 2008, 05:34:47 PM »
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.
« Last Edit: January 21, 2008, 09:50:57 PM by mebecker1 »

Offline fasttoyotapu

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Re: Sodium-Water reaction
« Reply #4 on: January 21, 2008, 07:30:34 PM »
Now the main question...

What frequency (hertz) will sodium superheat to the point of:

relesing bonds of NaHO

vaporization

Offline Arkcon

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Re: Sodium-Water reaction
« Reply #5 on: January 21, 2008, 07:43:48 PM »
Now the main question...

What frequency (hertz)

Unknown, term is not applicable.

Quote
will sodium superheat to the point of:

Again not applicable.

Quote
relesing bonds of NaHO

Even with correct spelling, the term is incorrect in this sense.

Quote
vaporization

I'm going to ask for more context here.  What is the real question you've been assigned, or in what sense do you mean these words, assuming you're not just applying words at random.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline fasttoyotapu

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Re: Sodium-Water reaction
« Reply #6 on: January 21, 2008, 07:57:14 PM »
When matter heats up, it shakes fast.  The faster the mater vibrates, the hotter it gets.  The vibration is the intensity (or amps if we were in a circuit).  The intensity in the air is hertz.  What frequency (hertz) will sodium superheat to the point of:

releasing bonds of NaHO

Vaporization?

Offline Arkcon

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Re: Sodium-Water reaction
« Reply #7 on: January 21, 2008, 08:29:33 PM »
When matter heats up, it shakes fast.  The faster the mater vibrates, the hotter it gets.  The vibration is the intensity (or amps if we were in a circuit).  The intensity in the air is hertz.  What frequency (hertz) will sodium superheat to the point of:

releasing bonds of NaHO

Vaporization?


No. 
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline agrobert

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Re: Sodium-Water reaction
« Reply #8 on: January 21, 2008, 08:32:00 PM »
When matter heats up, it shakes fast.  The faster the mater vibrates, the hotter it gets.  The vibration is the intensity (or amps if we were in a circuit).  The intensity in the air is hertz.  What frequency (hertz) will sodium superheat to the point of:

releasing bonds of NaHO

Vaporization?


ArE yOu a CoMpUtER?     o_O
In the realm of scientific observation, luck is only granted to those who are prepared. -Louis Pasteur

Offline Alpha-Omega

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Re: Sodium-Water reaction
« Reply #9 on: January 21, 2008, 09:54:23 PM »
Did you read the reaction. Do you know that sodium metal is stored in an inert solvent like :o kerosene....why do you think that would be the case???? :o

And where are your parents..

Per Wikipedia: 

Owing to its high reactivity, sodium is found in nature only as a compound and never as the free element. Sodium reacts exothermically with water: small pea-sized pieces will bounce across the surface of the water until they are consumed by it, whereas large pieces will explode. While sodium reacts with water at room temperature, the sodium piece melts with the heat of the reaction to form a sphere, if the reacting sodium piece is large enough. The reaction with water produces very caustic sodium hydroxide (lye) and highly flammable hydrogen gas. These are extreme hazards (see Precautions section below). When burned in air, sodium forms sodium peroxide Na2O2, or with limited oxygen, the oxide Na2O (unlike lithium, the nitride is not formed). If burned in oxygen under pressure, sodium superoxide NaO2 will be produced.
« Last Edit: January 21, 2008, 10:16:18 PM by mebecker1 »

Offline DigiTan

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Re: Sodium-Water reaction
« Reply #10 on: January 22, 2008, 04:34:02 AM »
Just, curious.  To tell just how exothermic a reaction is, would you use the bond energies table like the one here?...

* http://www.wiredchemist.com/chemistry/data/bond_energies_lengths.html


Offline hasanin_2

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Re: Sodium-Water reaction
« Reply #12 on: April 07, 2011, 07:26:33 PM »
is that reacion explosive.. i know that it's exothermic but i wan't to know can it hurt people ?? or objects like pools or a yacht ?

Offline Borek

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Re: Sodium-Water reaction
« Reply #13 on: April 08, 2011, 03:06:05 AM »
Reaction is not explosive - but products are. And yes, it is dangerous.
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