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4,12 grams aluminum sulfate is equivalent to 0,012 moles (for the anhydrous salt).
266,86 g aluminium chloride are obtained.
9 grams aluminum (1 mole Al/26.98 grams) = 0.3 moles aluminum ==============
1.60 x 10^24 molecules
106.7 grams
17.9 grams
1,99 grams of aluminum is equal to 0,0737 moles.
33 grams aluminum (1 mole Al/26.98 grams) = 1.2 moles of aluminum ================
2
10 grams aluminum (1 mole Al/26.98 grams) = 0.37 moles of aluminum ---------------------------------
16.3106
Aluminum sulfide has a molar mass of 150.16 grams per mole. This means there are 0.666 moles present, or 4.01 E23 molecules. Each molecule of Al2S3 has 2 aluminum atoms, so there are 8.02 E23 atoms of aluminum present.
4,12 grams aluminum sulfate is equivalent to 0,012 moles (for the anhydrous salt).
Aluminum oxide, Al2O3, is an ionic compound. There are no molecules in it.
25 grams / (17 grams/mole) x 6.022x1023 molecules/mole = 8.9x1023 molecules
266,86 g aluminium chloride are obtained.
16. 2 grams aluminum (1 mole Al/26.98 grams)(6.022 X 1023/1 mole Al) = 3.62 X 1023 atoms of aluminum -------------------------------------------