Congratulations, you have won a 20 gram ruby...
How many mols would that be? The molecular formula for ruby is Al2O3, so its molar weight is:
*
+
* =
* =
So if your ruby is 20 grams, and 102 grams is a mol, you can estimate that your ruby is about a fifth of a mol. Or, to be exact,
20 grams * 1/102 mols/g = 0.18 mol
20 grams is the same as about 100 carats and would be a huge crystal. Sadly such large crystals
rarely have much value as gems. Too bad...
| 1 H 1.01 |
2 He 4.00 |
||||||||||||||||
| 3 Li 6.94 |
4 Be 9.01 |
5 B 10.81 |
6 C 12.01 |
7 N 14.01 |
8 O 16.00 |
9 F 19.00 |
10 Ne 20.18 |
||||||||||
| 11 Na 22.99 |
12 Mg 24.30 |
13 Al 26.98 |
14 Si 28.09 |
15 P 30.97 |
16 S 32.07 |
17 Cl 35.47 |
18 Ar 39.98 |
||||||||||
| 19 K 39.10 |
20 Ca 40.09 |
21 Sc 44.96 |
22 Ti 47.88 |
23 V 50.94 |
24 Cr 51.94 |
25 Mn 54.94 |
26 Fe 55.85 |
27 Co 58.93 |
28 Ni 58.69 |
29 Cu 63.55 |
30 Zn 65.39 |
31 Ga 69.72 |
32 Ge 72.61 |
33 As 74.92 |
34 Se 78.96 |
35 Br 79.90 |
36 Kr 83.80 |
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