Qstnid -10-i-number Of Moles Of Carbon Atoms. () Number Of Moles Of Hydrogen Atoms. () Number Of Molecules Of Ethane. () Number Of Moles Of Hydrogen Atoms. () Number Of Molecules Of Ethane. () Number Of Moles Of Hydrogen Atoms. () Number Of Molecules Of Ethane. () Number Of Moles Of Hydrogen Atoms. () Number Of Molecules Of Ethane. - 01: Some Basic Concepts Of Chemistry

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NEET-XI-Chemistry

01: Some Basic Concepts of Chemistry

page 2

Qstn# 10-i Prvs-Qstn Next-Qstn

#10-i
Number of moles of carbon atoms.
() Number of moles of hydrogen atoms.
() Number of molecules of ethane.
() Number of moles of hydrogen atoms.
() Number of molecules of ethane.
() Number of moles of hydrogen atoms.
() Number of molecules of ethane.
() Number of moles of hydrogen atoms.
() Number of molecules of ethane.
Ans : 1 mole of C₂H₆ contains 2 moles of carbon atoms.

∴ Number of moles of carbon atoms in 3 moles of C₂H₆

= 2 × 3 = 6
() 1 mole of C₂H₆contains 6 moles of hydrogen atoms.

∴ Number of moles of carbon atoms in 3 moles of C₂H₆

= 3 × 6 = 18
() 1 mole of C₂H₆contains 6.023 × 10²³ molecules of ethane.

∴ Number of molecules in 3 moles of C₂H₆

= 3 × 6.023 × 10²³ = 18.069 × 10²³

Page No 23:
() 1 mole of C₂H₆contains 6 moles of hydrogen atoms.

∴ Number of moles of carbon atoms in 3 moles of C₂H₆

= 3 × 6 = 18
() 1 mole of C₂H₆contains 6.023 × 10²³ molecules of ethane.

∴ Number of molecules in 3 moles of C₂H₆

= 3 × 6.023 × 10²³ = 18.069 × 10²³

Page No 23:
() 1 mole of C₂H₆contains 6 moles of hydrogen atoms.

∴ Number of moles of carbon atoms in 3 moles of C₂H₆

= 3 × 6 = 18
() 1 mole of C₂H₆contains 6.023 × 10²³ molecules of ethane.

∴ Number of molecules in 3 moles of C₂H₆

= 3 × 6.023 × 10²³ = 18.069 × 10²³

Page No 23:
() 1 mole of C₂H₆contains 6 moles of hydrogen atoms.

∴ Number of moles of carbon atoms in 3 moles of C₂H₆

= 3 × 6 = 18
() 1 mole of C₂H₆contains 6.023 × 10²³ molecules of ethane.

∴ Number of molecules in 3 moles of C₂H₆

= 3 × 6.023 × 10²³ = 18.069 × 10²³

Page No 23:

#10-ii
Number of moles of hydrogen atoms.
Ans : 1 mole of C₂H₆contains 6 moles of hydrogen atoms.

∴ Number of moles of carbon atoms in 3 moles of C₂H₆

= 3 × 6 = 18

#10-iii
Number of molecules of ethane.
Ans : 1 mole of C₂H₆contains 6.023 × 10²³ molecules of ethane.

∴ Number of molecules in 3 moles of C₂H₆

= 3 × 6.023 × 10²³ = 18.069 × 10²³

Page No 23: