The largest number of hydrogen atoms present in
Asked by admin @ in Chemistry viewed by 388 People
Maximum no. of hydrogen atoms are in:
(A) 16g of CH4(B) 31.2g of C6H4 (C) 34.2g of C12H22011.(D) 36g of CoH1206
Asked by admin @ in Chemistry viewed by 388 People
Maximum no. of hydrogen atoms are in:
(A) 16g of CH4(B) 31.2g of C6H4 (C) 34.2g of C12H22011.(D) 36g of CoH1206
Answered by admin @
Answer: The correct answer is Option B.
Explanation:
To calculate the number of moles, we use the equation:
.....(1)
Given mass of methane = 16 g
Molar mass of methane = 16 g/mol
Putting values in equation 1, we get:
1 mole of methane compound is formed by 1 mole of carbon and 4 moles of hydrogen atoms.
According to mole concept:
1 mole of a gas contains number of atoms.
So, 1 mole of methane compound will have number of hydrogen atoms.
Number of hydrogen atoms =
Given mass of = 31.2 g
Molar mass of = 76 g/mol
Putting values in equation 1, we get:
1 mole of compound is formed by 6 moles of carbon and 4 moles of hydrogen atoms.
According to mole concept:
1 mole of a gas contains number of atoms.
So, 0.41 mole of compound will have number of hydrogen atoms.
Number of hydrogen atoms =
Given mass of = 34.2 g
Molar mass of = 342.3 g/mol
Putting values in equation 1, we get:
1 mole of compound is formed by 12 moles of carbon, 22 moles of hydrogen atoms and 11 moles of oxygen atoms.
According to mole concept:
1 mole of a gas contains number of atoms.
So, 0.099 mole of compound will have number of hydrogen atoms.
Number of hydrogen atoms =
Given mass of = 36 g
Molar mass of = 180.156 g/mol
Putting values in equation 1, we get:
1 mole of compound is formed by 6 moles of carbon, 12 moles of hydrogen atoms and 6 moles of oxygen atoms.
According to mole concept:
1 mole of a gas contains number of atoms.
So, 0.199 mole of compound will have number of hydrogen atoms.
Number of hydrogen atoms =
Hence, the correct answer is Option B.
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