Maximum number of O atom are present in
(1) 2 g molecule of glucose
(2) 2 g molecule of acetone
(3) 2 g molecule of ethanol
(4) 2 g molecule of sucrose
Answers
sucrose.... option (4)..........
The maximum number of atoms are present in 2 grams of glucose that are
Explanation:
To calculate the number of moles, we use the equation:
.....(1)
According to mole concept:
1 mole of an element contains number of atoms
For the given options:
- For A: 2 g of glucose
The chemical formula of glucose is
1 mole of glucose contains 6 moles of carbon atom, 12 moles of hydrogen atom and 6 moles of oxygen atom.
Given mass of glucose = 2 g
Molar mass of glucose = 180 g/mol
Putting values in equation 1, we get:
Number of O atoms =
- For B: 2 g of acetone
The chemical formula of acetone is
1 mole of acetone contains 3 moles of carbon atom, 6 moles of hydrogen atom and 1 mole of oxygen atom.
Given mass of acetone = 2 g
Molar mass of acetone = 58 g/mol
Putting values in equation 1, we get:
Number of O atoms =
- For C: 2 g of ethanol
The chemical formula of ethanol is
1 mole of ethanol contains 2 moles of carbon atom, 6 moles of hydrogen atom and 1 mole of oxygen atom.
Given mass of ethanol = 2 g
Molar mass of ethanol = 46 g/mol
Putting values in equation 1, we get:
Number of O atoms =
- For D: 2 g of Sucrose
The chemical formula of sucrose is
1 mole of ethanol contains 2 moles of carbon atom, 6 moles of hydrogen atom and 1 mole of oxygen atom.
Given mass of sucrose = 2 g
Molar mass of sucrose = 342 g/mol
Putting values in equation 1, we get:
Number of O atoms =
Learn more about mole concept:
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