Why do food scientists need to understand chemistry?
1 answer:
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Answer:
The given statement is true.
Explanation:
Chlorine gas is prepared by heating manganese dioxide with hydrochloric acid.T he reaction takes place in two steps
1) Reaction between manganese dioxide and HCl gives manganese(II) chloride along with water and nascent oxygen.
...[1]
2) Then this nascent oxygen formed in above reaction oxidizes HCl into water and chlorine gas.
..[2]
So , the net chemical reaction comes out to be:
Answer: Theoretical yield is 313.6 g and the percent yield is, 91.8%
Explanation:
To calculate the moles :
According to stoichiometry :
1 mole of require 3 moles of
Thus 2.8 moles of will require=
of
Thus is the limiting reagent as it limits the formation of product and
is the excess reagent.
As 1 mole of give = 2 moles of
Thus 2.8 moles of give =
of
Mass of
Theoretical yield of liquid iron = 313.6 g
Experimental yield = 288 g
Now we have to calculate the percent yield
Therefore, the percent yield is, 91.8%