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September 19, 2014

September 19, 2014

Posted by **Sara** on Tuesday, April 27, 2010 at 11:59pm.

Would it be gold?

Also this other question:

What is the total number of atoms in a single unit of the compound Ga(OH)^3?

Thank you very much for all of your help;-)

- Science-Chemistry -
**DrBob222**, Wednesday, April 28, 2010 at 12:08amThe idea in the first question is to reason through it. What do we know about mass, volume, density? Since mass = volume x density, then

volume = mass/density; therefore, the highest density will be the smallest volume and the lowest density will have the largest volume. right?

The question tells us mass is exactly the same; therefore, the volume MUST depend upon the density.

What do you know about the densities of ice, aluminum, gold, and Styrofoam?

2nd question:

A single unit of Ga(OH)3. That means one molecule. There will 1 Ga atom and 3 O atoms and 3 H atms for a grant total of 1 + 3 + 3 = ??

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