SATHEE: Some Basic Concepts Of Chemistry Question 7

Some Basic Concepts Of Chemistry Question 7

Question: For the reaction $2 x + 3 y + 4 z \to 5 w$ 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

Options:

A) 50%

B) 60%

C) 70%

D) 40%

Show Answer

Answer:

Correct Answer: A

Solution:

$2 x + 3 y + 4 z \to 5 w$ Given moles 1 3 4 Stoichiometric coefficient 2 3 4 Checking for L.R. $\frac{g i v e n m o l e s}{s t o i c h i o m e t r i c c o e f f i i e n t} \overset{x}{\frac{1}{2}}, \overset{y}{, \frac{3}{3} = 1} \overset{z}{\frac{4}{4} = 1},$ $\frac{1}{2} < 1$
$∴ x i s L . R .$ 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 = $\frac{A c t u a l, y i e l d}{y i e l d, o b t a i n e d} \times 100$ = $\frac{1.25}{2.5} \times 100 = 50$

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Some Basic Concepts Of Chemistry Question 7

Question: 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

Options:

Answer:

Solution:

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Question: For the reaction $2 x + 3 y + 4 z \to 5 w$ 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