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I assume you mean 6.2 x 1022, but the logic is the same for other amounts anyway.
6.2 x 1022 atoms is 0.01295 moles (using Avogadro's number)
1 mole gold weights 197 grams (many periodic tables list this in the top right corner)
Therefore your gold weights 197 x 0.01295 = 2.6 g
Wiki User
∙ 12y ago
Wiki User
∙ 10y agoYou divide 1.204x10^24 by avagadros number to get the amount of moles. Dividing by 6.022x10^23 gives you 2 moles. Moles is mass / molecular mass. The Atomic Mass of gold is 196.97g/mol so this is 393.94g.
Wiki User
∙ 15y ago4.95 x 1022 atoms Au (196.97 g / 6.02 x 1023 at) = 16.2 grams Au
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How many atoms does 100 grams of gold have?
Gold has a molar mass of 196.96655 grams per mole. 100 grams then is equal to .508 moles which makes 3.059 E23 atoms of gold.
5.6 moles of gold contain how many atoms?
5.0 grams gold (1 mole Au/197.0 grams)(6.022 X 1023/1 mole Au) = 1.5 X 1022 atoms of gold ===================
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How many atoms of gold are in 5 grams of gold?
Atomic mass of Ag: 107.9 grams5.00 grams × (6.02 × 1023 atoms) / (107.9 grams) = 2.79 × 1022 atoms Ag
How many atoms does 100 grams of gold have?
Gold has a molar mass of 196.96655 grams per mole. 100 grams then is equal to .508 moles which makes 3.059 E23 atoms of gold.
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5.0 grams gold (1 mole Au/197.0 grams)(6.022 X 1023/1 mole Au) = 1.5 X 1022 atoms of gold ===================
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stop typing your physics homework in and work it out yourself!
How many grams of gold are there in 15.3 moles of Au?
If 3,6 x 10-5 is grams the number of atoms is 1,1.10e17.
How many atoms of gold are in a necklace that weighs 12.7g?
12.7 g gold (1 mole Au/197.0 grams)(6.022 X 10^23/1 mole Au) = 3.88 X 10^22 atoms of gold
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How many grams are in an oz of gold?
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How many atoms are in a gold ring that has a mass of 19.7 grams?
Well, firstly you need to know if it is pure gold. Assuming that it is, convert the grams to moles 19.7g Au x 1molAu/197.0gAu = 0.1moles Au And then, to get the number of atoms in 0.1 moles of gold, multiply it by Avogadro's number, 6.22x10^23 atoms per mole 0.1mol Au x 6.22x10^23atoms/mole = 6.22x10^22
