________________ are a lot like gases, but the atoms are different because they are made up of free electrons and ions of the el
1 answer:
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Answer:
M
Explanation:
Concentration of = 0.020 M
Constructing an ICE table;we have:
Initial (M) 0.020 0.40 0
Change (M) - x - 4 x x
Equilibrium (M) 0.020 -x 0.40 - 4 x x
Given that:
Since x is so small; 0.40 -4x = 0.40
Then:
M
Answer:a) 11.34 g of ethane can be formed
b) is the limiting reagent
c) 3.44 g of the excess reagent remains after the reaction is complete
Explanation:
To calculate the moles :
1.
2.
According to stoichiometry :
1 mole of require 1 mole of
Thus 0.378 moles of will require=
of
Thus is the limiting reagent as it limits the formation of product and
is the excess reagent.
moles of left = (2.10-0.378) = 1.72 moles
mass of left=
According to stoichiometry :
As 1 mole of give = 1 mole of
Thus 0.378 moles of give =
of
Mass of
Thus 11.34 g of ethane is formed.