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Can you explain the answer of this question below:
Number of nitrogen atoms present in 1.4 g of N2:​
  • A:
    6.023 X 1022
  • B:
    6.023 X 1023
  • C:
    3.012 X 1023
  • D:
    3.012 X 1022
The answer is a.
Verified Answer
Can you explain the answer of this question below:Number of nitrogen a...
Given weight of N₂ gas = 1.4 g
Molar mass of N₂ gas = 28 g
So, mole = given mass/ molar mass
⇒ mole = 1.4/28 = 1/20 mole
Now, number of molecules = mole × avogadro number
⇒ number of molecules = 1/20 × 6.022 × 10²³
⇒ number of molecules = 3.011 × 10²²
Now, we are asked for number of atoms. In N₂, there are 2 atoms, so to obtain number of atoms we will multiply with 2 in number of molecules.
⇒ number of atoms = 2 × 3.011 × 10²²
⇒ number of atoms = 6.022 × 10²²
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Most Upvoted Answer
Can you explain the answer of this question below:Number of nitrogen a...
D bcoz mass of N2 is 28 so no. Of atoms gets divided and it becomes 3.012 x 10^12
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Community Answer
Can you explain the answer of this question below:Number of nitrogen a...
No. of nitrogen atoms in 14 g. of nitrogen=1 mole =6.023×10^23 atoms. So,No. of nitrogen atoms in 1.4 g. of nitrogen=6.023×10^23÷10 =6.023×10^22atoms
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Can you explain the answer of this question below:Number of nitrogen atoms present in 1.4 g of N2:​A:6.023 X 1022B:6.023 X 1023C:3.012 X 1023D:3.012 X 1022The answer is a.
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