Respuesta :
Answer:
The mole fraction of acetyl bromide is 0.535
Explanation:
Step 1: Data given
Mass of acetyl bromide = 127 grams
Mass of heptane = 90 grams
Molar mass of acetyl bromide = 122.95 g/mol
Molar mass of heptane = 100.21 g/mol
Step 2: Calculate moles acetyl bromide
Moles acetyl bromide = mass acetyl bromide / molar mass acetyl bromide
Moles acetyl bromide = 127.0 grams / 122.95 g/mol
Moles acetyl bromide = 1.033 moles
Step 3: Calculate moles heptane
Moles heptane = 90.0 grams / 100.21 g/mol
Moles heptane = 0.898 moles
Step 4: Calculate Total moles
Total moles = moles acetyl bromide + moles heptane
Total moles = 1.033 moles + 0.898 moles
Total moles = 1.931 moles
Step 5: Calculate the mole fraction of acetyl bromide
Mole fraction acetyl bromide =1.033 moles / 1.931 moles
Mole fraction acetyl bromide = 0.535
The mole fraction of acetyl bromide is 0.535
The study of the chemicals and bonds is called chemistry.
The correct answer is 0.535
The mole is the base unit of the amount of substance in the International System of Units. It is defined as exactly[tex] 6.02214076*10^{23[/tex] elementary entities, which may be atoms, molecules, ions, or electrons.
All the Data given is given in the question as follows:-
- Mass of acetyl bromide = 127 grams
- Mass of heptane = 90 grams
- Molar mass of acetyl bromide = 122.95 g/mol
- Molar mass of heptane = 100.21 g/mol
After Calculate moles acetyl bromide:-
Moles acetyl bromide = [tex]\frac{mass} {molar mass}[/tex]
Moles acetyl bromide = [tex]\frac{127.0}{122.95}[/tex]l
Moles acetyl bromide = 1.033 moles
The moles heptane is as follows:-
Moles heptane = 90.0 grams / 100.21 g/mol
Moles heptane = 0.898 moles
The Total moles are as follows:-
Total moles = moles acetyl bromide + moles heptane
Total moles = 1.033 moles + 0.898 moles
Total moles = 1.931 moles
Mole fraction acetyl bromide =1.033 moles / 1.931 moles
Mole fraction acetyl bromide = 0.535
The mole fraction of acetyl bromide is 0.535
Hence, the correct answer to the question is 0.535
For more information about the mole, refer to the link:-
https://brainly.com/question/15209553
