Question

$1)$In three moles of ethane $C_2{H}_6,$ calculate the following:

$A)$ Number of moles of carbon atoms.

$2)$In three moles of ethane $C_2{H}_6,$ calculate the following:

$B)$ Number of moles of hydrogen atoms.

$3)$In three moles of ethane $C_2{H}_6,$ calculate the following:

$C)$ Number of molecules of ethane.

Answer 1

$A)$ In three moles of ethane $C_2{H}_6,$ calculate the following:

Number of moles of carbon atoms

$1$ mole of $C_2{H}_6$ contains $2$ moles of carbon atoms,

Number of moles of carbon atoms in $3$ moles of $C_2{H}_6=2\times 3=6mol$

$B)$ In three moles of ethane $C_2{H}_6,$ calculate the following:

Number of moles of hydrogen atoms:

$1$ mole of $C_2{H}_6$ contains $6$ moles of hydrogen atoms,

Number of moles of hydrogen atoms in $3$ moles of $C_2{H}_6=3\times 6=18mol$

$C)$ In three moles of ethane $C_2{H}_6,$ calculate the following:

number of moles of ethane.

$1$ mole of $C_2{H}_6$ contains $6.022\times {10}^{23}$ moles of ethane,

Number of molecules in $3$ moles of $C_2{H}_6=3\times 6.022\times {10}^{23}=18.066\times {10}^{23}$