Question

calculate the no. of moles for 24 x 10^23 of H atoms ?​

Answer 1

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⠀⠀⠀⠀⠀$\Large{\boxed{\underline{\overline{\mathfrak{\star \: AnSwer :- \: \star}}}}}$

Given ;

• No. of molecules = $\sf{24~×~10^{23}}$

To find ;

• No. of moles = ?

Solution ;

To convert no. of molecules into no. on moles we use the following formula,

$\large\underline{\sf{\orange{No.~of~Moles~=~\frac{No.~of~molecules}{Avogadro's Constant~(6.023~×~10^{23})}}}}$

$\implies\sf{No.~of~Moles~=~\frac{24~×~10^{23}}{6.023~×~10^{23}}}$

$\implies\sf{No.~of~Moles~=~\cancel{\frac{24~×~10^{23}}{6.023~×~10^{23}}}}$

$\implies\sf{No.~of~Moles~=~\frac{24~×~10^{23}}{6.023~×~10^{23}}}$

$\implies\sf\pink{No.~of~Moles~\approx~4}$

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Answer 2

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⠀⠀⠀⠀⠀$\Large{\boxed{\underline{\overline{\mathfrak{\star \: Solution:- \: \star}}}}}$

To convert no. of molecules into no. on moles we use the following formula,

$\large\underline{\sf{\red{No.~of~Moles~=~\frac{No.~of~molecules}{Avogadro's Constant~(6.023~×~10^{23})}}}}$

$\implies\sf{No.~of~Moles~=~\frac{24~×~10^{23}}{6.023~×~10^{23}}}$

$\implies\sf{No.~of~Moles~=~\cancel{\frac{24~×~10^{23}}{6.023~×~10^{23}}}}$

$\implies\sf{No.~of~Moles~=~\frac{24~×~10^{23}}{6.023~×~10^{23}}}$

$\implies\underline{\sf{\purple{No.~of~Moles~\approx~4}}}$

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