The Weight of Heavy Water?

do not know if this is what you are asking for, it also tells you about semi heavy water

http://en.wikipedia.org/wiki/Heavy_water

sorry i may have mis worded my question,but i am sorry. i believe no question is a stupid question. especially at my age. sorry you feel the way you do. sad for you

Guest,

I think you mistook the poster's quote as being directed to you. I can't speak for the poster, but I would be willing to bet it wasn't directed at you. We all have a quote that we like that is attached to our posts and we don't usually change it when we answer a particular thread. Don't take it personally.

Jim

no problem thank-you for straighting me out. Take-Care Barry

For the record, the poster's signature quote was made by Abraham Lincoln.

no, my quote was'nt directed to you, its something that I try to follow. My dad told this to me when I was a teenager, I thought it was his, only to find out it has quite a few authors, including the bible.

I try to follow it, but not all the time , as you can see it is wise advise.

Is this a Gico insurance question?

Then, the answer is Spring.

Look up the molecular weight of hydrogen and oxygen and do the math for each for a given volume. Basic chemistry.

Are you asking about the weight after dissolving the salt in the water?

Are you talking NaCl in H₂O, or D₂O or what?

Deuterium oxide a.k.a. heavy water density is 1.10469 g/cm3 at 0 °C, 1.10445 at 25 °C, and 1.06346 at 100 °C.

thats what i'm talking about. thank-you for your answer and patience Barry

Re : 'Heavy Water', Water is at its highest level of density at 4 degress C. It would therefore mean that whether it is in its purest state or contains salts or impurities, it would still have its highest level of density at 4 degress C., meaning that is when it is heaviest.

Let's not get confused between weight and density.

The weight of a given quantity will remain the same, ie, matter can be neither created or destroyed.

It is the density which changes with temperature.

I have learnt something new, that heavy water is denser than water, well, I guess it would be, wouldn't it.

But how 'heavy' is light brown and light beer? Reminds me of the apprentice sent to the stores for some elbow grease and a long weight.

... and a new bubble for the spirit level .

BTW in Scotland, a pint of ordinary beer is called 'heavy' (as distinct from 'special', 'export' etc.).

in wisconsin lite beer is called unleaded,

Long stand, bucket of blue steam, bucket of melted ice, sky hook, striped/tartan paint, left handed screwdriver, glass hammer, square bubble for the spirit level.

Pulled them all off with apprentices

Al

Lets not forget the metric Crescent wrench (adjustable spanner).

I am wondering where the salt (mentioned by the originator of this thread) enters into thiings. Salt doesn't have a thing to do with heavy water.

Bill

You wrote that "the weight of a given quantity will remain the same"

This is not the case, the weight will change dependent upon the effects of gravity on the object being measured...the mass will remain constant (unless it is travelling very very fast and is being affected by relativity). Weight is the measure of gravity's effect on mass, mass is a measurement of the amount of matter.

I'm not sure if the original poster wants to know what the molecular mass of heavy water is or if they are looking for a more complicated answer, but my simple answer would be to take the molecular weight and add the mass of two neutrons. It's been a while since I've even though about heavy water, but I know that to some degree it does exist naturally (since isotopes of hydrogen exist naturally in relatively small amounts).

10 lbs of heavy water will weigh precisly 10 lbs.

"10 lbs of heavy water will weigh precisly 10 lbs."

And 7.5 pounds of salt will weigh precisely 7.5 lbs. Eureka!

Interesting question, I recently had a discussion about water and Ice, and the fact that water is most dense at 4 deg C, that's why Ice floats, and in your drink the coldest liquid remains at the top of the glass. We discussed the possibility of weighted ice to make the temperature of a drink uniform.

Will Deuterium oxide ice cubes sink in water?

Perhaps that is the solution to warm drinks???

Regards CEKM