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  4. For the reaction 2x +3y+4z → 5w Initially if 1 mole of x, 3 moles of y and 4 moles of z is taken. If 1.25 moles of w is obtained then % yield of this reaction is

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Q. For the reaction
$2x +3y+4z \to 5w$
Initially if $1$ mole of $x, 3$ moles of $y$ and $4$ moles of $z$ is taken. If $1.25$ moles of $w$ is obtained then $\%$ yield of this reaction is

Some Basic Concepts of Chemistry

Solution:

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$\therefore \, x$ is $L. R$
According to stoichiometry, $2$ moles of $x$ yields $5$ moles of $w$.
$1$ mole of $x$ yield$\frac{5}{2} =2.5$ moles of $w$
$\%$ yield$=\frac{\text{Actual yield}}{\text{yield obtained}} \times 100$
$=\frac{1.25}{2.5} \times100 =50\%$