Chemistry experts- chime in.

[S13]

I got this little metal element cube set for my son.

It is pretty cool, but I think it has a problem.

Each cube is a 1 cm square.



W- Tungsten 18 grams



Bismuth 12 grams




They are supposed to be at least .999 pure.




Am I crazy?

 

[Tnhawk]

different measurements- area vs weight

 

[S13]

different measurements- area vs weight

1cm cube is the same as another 1 cm cube

74 atomic weight vs 83 atomic weight

Where am I wrong?

 

[Tnhawk]

1cm cube is the same as another 1 cm cube

74 atomic weight vs 83 atomic weight

Where am I wrong?

Don't start me to lying, I worked in a chemical plant, I'm not a chemist.

 

[S13]

Don't start me to lying, I worked in a chemical plant, I'm not a chemist.

Is there a density issue or something? I thought higher atomic weight meant more density.

 

[jmohme]

I think I see the problem. You got something backwards.

That aside. Thats a pretty cool educational piece you got your kid.

 

[seeker_two]

I'll trade you for your plutonium cube....

 

[S13]

Some days you feel really stupid. This is one of those days.

I'm not a chemist and my last chemistry class was probably sometime in 1988.

But I really thought atomic weight and scale weight were proportional.


Anyway, this explains it, I think.

 

[S13]

I think I see the problem. You got something backwards.
View attachment 422513
That aside. Thats a pretty cool educational piece you got your kid.

I got it for him to learn some stuff. Turns out I learned some stuff.

 

[kbaxter60]

Send me Au and I will verify it for you.

 

[Lonesome Dove]

Blue and yellow make green.

 

[BRD@66]

Blue and yellow make green.

quote from Midland City Police Commissioner Benjamin Norton.

 

[OneGunTX]

The metals will have a different density. So, metals of the same volume will weigh differently. You can look up the density of the solid metals, and you can calculate the weight of a 1 cubic cm. The atomic weight is the weight of 1 mole of the element. Remember a mole is 6.023 * 10^23 molecules.

 

[Lonesome Dove]

quote from Midland City Police Commissioner Benjamin Norton.

Never heard the name.

 

[ZX9RCAM]

The metals will have a different density. So, metals of the same volume will weigh differently. You can look up the density of the solid metals, and you can calculate the weight of a 1 cubic cm. The atomic weight is the weight of 1 mole of the element. Remember a mole is 6.023 * 10^23 molecules.

I was wondering what the actual question was.

 

[robertc1024]

The metals will have a different density. So, metals of the same volume will weigh differently. You can look up the density of the solid metals, and you can calculate the weight of a 1 cubic cm. The atomic weight is the weight of 1 mole of the element. Remember a mole is 6.023 * 10^23 molecules.

It's 6.022e^23. Avogadro's constant. A number boiled into my head.

 

[OneGunTX]

It's 6.022e^23. Avogadro's constant. A number boiled into my head.

I am sorry, but you are wrong. Base e is incorrect. I am a licensed chemical engineer. Read the following:

This number (Avogadro's number) is 6.023 X 10^23. It is the number of molecules of any gas present in a volume of 22.41 L and is the same for the lightest gas (hydrogen) as for a heavy gas such as carbon dioxide or bromine. Avogadro's number is one of the fundamental constants of chemistry.

Sent from my SM-S901U using Tapatalk

 

[Wiliamr]

Well.... Bismuth density weighs in 9.8 gr/cm3
Tungsten density weighs in at 19.25 gr/cm3

 

[Moonpie]

Because one of them isn't what it is labeled as.

You've been Chinese'ed.

 

[kbaxter60]

Because one of them isn't what it is labeled as.

You've been Chinese'ed.

Cool. You got some Chinesium!
Atomic weight = 666