In an experiment, 9 g of aluminum react with 8 g of sulfur to form aluminum sulfide. calculate the grams of aluminum sulfide formed. al + s → al2s3
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Ответ:
The grams of aluminum sulfide formed are ; 12.51 g
Explanation:
Using Formula,
Calculate the moles of Al and S :
Given mass of Al = 9 g
Molar mass of Al = 27 g/ mole
Mole of Al = 0.33
Given mass of S = 8 g
Molar mass of S = 32 g/mole
Mole of S = 0.25
The balanced chemical equation for the reaction between aluminium and sulfur is :
Here ,
2 mole of Al needs 3 moles of S
1 mole of Al needs 3/2(= 1.5) moles of S
hence ,
0.33 mole of Al should require
Sulfur needed = 0.495 mole
Available S = 0.25 mole
So there is less sulfur than required , S is the limiting reagent
Amount of S decide the Amount of Al2S3 formed
3 mole of S produce 1 mole of Al2S3
1 mole of S produce 1/3 mole of Al2S3
0.25 mole will produce :
= 0.0833 moles of Al2S3
Molar mass of
= 12.51 g
Ответ:
She is not correct because ∠1 is an alternate exterior angle with ∠3, not the angle that measures 105°. So m∠1 = 75°.
Explanation:
Hope This Helps :)