Answer : If a substance is the limiting reactant, then it limits the formation of products because in the reaction it is present in limited amount.
Explanation :
While observing a chemical reaction, we can tell about whether a reactant is limiting or excess.
Step 1 : first write the chemical reaction and then balanced the chemical equation.
[tex]C_2H_4+H_2\rightarrow C_2H_6[/tex]
Step 2 : convert the given masses into the moles if mass of [tex]C_2H_4[/tex] is 10.5 g and molar mass of [tex]C_2H_4[/tex] is 28 g/mole and the mass of hydrogen is 0.40 g and molar mass of hydrogen is 2 g/mole.
[tex]\text{moles of }C_{2}H_{4}=\frac{10.5g}{28g/mole}=0.375moles[/tex]
[tex]\text{moles of }H_{2}=\frac{0.40g}{2g/mole}=0.20moles[/tex]
Step 3 : Now we have to determine the limiting reagent and excess reagent.
[tex]\text{ moles of }C_{2}H_{4}\text{ in excess}=0.375-0.20=0.175\text{moles}[/tex]
Now we conclude that [tex]C_{2}H_{4}[/tex] is the limiting reagent and hydrogen is an excess reagent.
Hypothesis :
Limiting reagent : It is the reagent in the chemical reaction that is totally consumed when the chemical reaction is complete. Â Limiting reagent limits the formation of products.
Answer:
If a substance is the limiting reactant, then . . .
it will limit the formation of products
because . . .
the reaction is presented at limited
Explanation:
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