<span>1) Balanced chemical equation
Sb2S3(s) + 3Fe(s) --> 2Sb(s) + 3FeS(s)
2) Theoretical molar ratios
1 mol SbsS3 : 3 mol Fe : 2 mol Sb : 3 mol FeS
3) Convert </span><span>18.45g Sb2S3 and12.1g Sb to moles
You need to use the atomic and molar masses
Sb: 121.76 g/mol
S: 32.07 g/mol
Sb2S3: 2 * 121.76 g/mol + 3 * 32.07 g/mol = 339.73 g/mol
18.45 g Sb2S3 / 339.73 g/mol = 0.0543 mol Sb2S3
12.1 g Sb / 121.76 g / mol = 0.099 mol Sb
Theoretical yield:
1 mol Sb2S3 / 2 mol Sb = 0.0543 mol SbsS3 / x mol Sb
Solve for x:
x = 0.0543 mol Sb2S3 * 2 mol Sb / 1 mol Sb2S3 = 0.1086 mol Sb
4) Percent yield
0.099 mol Sb / 0.1086 mol Sb * 100 = 91.16%
Answer: 91.5% (the difference with 91.16% is due to the decimals used for the atomic masses)
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Answer:
It leads to increase in temperature
Explanation:
An increase in temperature leads to increase in reaction rate. As the temperature increase, the average kinetic energy of each of the components is increased which causes the components of the reaction of collide with each other.
Answer:
Decomposers break down the dead organism and return the carbon in their bodies to the atmosphere as carbon dioxide by respiration
cation means the primation in the air
