7) The balanced equation for a reaction
is given below
2x+3y-414 m
When 8 moles of x react with 15
moles of y, then
i) Which is the limiting reagent?
ii) Calculate the amount of products
formed.
ii) Calculate the amount of excess
reactant left at the end of the
reaction.
Answers
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from the equation 2x +3y = 4l +m
2 moles of x react with 3 moles of y
8 miles of x is supposed to react with 3/2 x 8 moles of y =12 moles
since we have 15 moles of y it means y is in excess
i) the limiting reagent is x
2 moles of x produce 4 moles of l and 1 mole of m
ii) 8 moles of x Will produce 2x8 =16 moles of l
8 moles of x will produce 1/2 x 8 moles of l =4 moles
iii) Excess reactant is y
Excess y = 15 moles -12 moles = 3 moles
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