Each molecule of Al2S3 is composed of one Al3+ ion. Since a mole is equal to 6.022 x 1023 molecules, there would be 6.022 x 1023 Al3+ ions in one mole of Al2S3.
In Al2S3 , there are 2 atoms of Al and 3 atoms of S.
Aluminum is a metal, while Sulfur is a non-metal. So, there are 2 metal atoms.
There is one type of metal in Al2S3 and that is Al (aluminum). If you want to know how many metal atoms are in 1 molecule of Al2S3, then the answer would be 2, because there are 2 Al atoms.
U89
Calcium difluoride, CaF2 Dialuminium trisulphide, Al2S3
Al2S3
Two aluminum atoms and three sulfur atoms would have the formula Al2S3. When writing a formula for an ionic compound, the positive ion (in this case Al3+) is written first. Very often, an ionic compound is composed of a metal and a nonmetal, as in Al2S3, in which case the metal ion will be written first because it will always be positively charged.
Al2S3
Aluminum sulfide is Al2S3, which has 3 sulfur atoms per formula unit. 1.10mol means 1.10(6.02x1023), which is 6.62x1023 formula units. Multiple that by 3 to get your sulfur atoms: 6.62x1023(3) = 1.99x1024 sulfur atoms.
Calcium difluoride, CaF2 Dialuminium trisulphide, Al2S3
The formula for the compound aluminum sulfide is Al2S3. Each Al2S3 molecule contains 2 aluminum atoms and 3 sulfur atoms.
Al2S3
Two aluminum atoms and three sulfur atoms would have the formula Al2S3. When writing a formula for an ionic compound, the positive ion (in this case Al3+) is written first. Very often, an ionic compound is composed of a metal and a nonmetal, as in Al2S3, in which case the metal ion will be written first because it will always be positively charged.
100/150.158 is 0.666 moles
Al2S3
Aluminum sulfide is Al2S3, which has 3 sulfur atoms per formula unit. 1.10mol means 1.10(6.02x1023), which is 6.62x1023 formula units. Multiple that by 3 to get your sulfur atoms: 6.62x1023(3) = 1.99x1024 sulfur atoms.
2Al + 3S -> Al2S3
2Al + 3S -> Al2S3
Calcium fluoride is CaF2, and aluminium sulfide is Al2S3. All numbers should be subscripts.
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2Al+3S--->Al2S3