Answer:
The mass percentage of chlorine is 60.66 % chlorine in the compound sodium chloride.
Explanation:
Starch, proteins and nucleic acids have different quantity
of monomers each. Starch has got 5 monomers and they are maltose, cellobios,
sucrose, trehalose and sucrose. There are 20 monomers present in proteins and
they are mainly amino acids of different kinds. Nucleic acids on the other hand
again has 5 monomers. The 5 monomers present in nucleic acid are adenine, uracil,
thymine, cytosine and guanine. Various kinds of organic molecules like the proteins,
lipids, carbohydrates etc. are made up of monomers.
Answer: A
Explanation it gets all mushy THATS a physical change
Percent yield is 23.11 % when 162.8 g of CO2 are formed from the reaction of excess amount of C8H18 and with 218.0 grams of O2.
Explanation:
Balanced equation for the chemical reaction:
2C8H18 + 25O2 → 16CO2 + 18H2O
data given:
CO2 formed (actual yield) = 162.8 grams
mass of oxygen = 218 grams
16 moles of CO2 formed when 5 moles of oxygen reacted
3.6 moles of CO2 formed when 6.8 moles of oxygen reacted.
In the reaction 16 moles of CO2 will have 44.01 x 16
theoretical yield of CO2 = 704.16 grams
percent yield =
x100
putting the values in the above equation
percent yield =
x 100
= 0.23 x 100
= 23.11 %
Percent yield is 23.11 %.