Which of the following organisms in the soil food chain does not obtain energy directly from plants?
2 answers:
You might be interested in
Answer:
C)95.2
Explanation:
Given parameters:
Expected yield = 5000kg
Experimental yield = 4760kg
Unknown:
Percentage yield = ?
Solution:
The percentage yield of the substance is determined by find the ratio of the true experimental yield to the expect yield and multiply by 100;
Percentage yield = x 100 = 95.2%
Answer: 249 grams
Explanation:
The balanced chemical equation is :
As water is present in excess , it is called as excess reagent and ethylene is the limiting reagent.
According to stoichiometry:
1 mole of ethylene produces = 1 mole of ethanol
Thus 5.40 mole of ethylene produces = mole of ethanol
Mass of ethanol =
Thus 249 g of ethanol are produced from 5.40 mol of ethylene