Answer:
Explanation:
Molecules contain two or more atoms and are held together by covalent bonds, whereas compounds are held together by ionic bonds. Two or more elements bonded together through ionic attraction. ... The atoms within a compound also must be different from each other, whereas a molecule can consist of only one element
Proteins have four structures primary, secondary,m tertiary, and quaternary. The primary structure of the protein has been known to have peptide bonds. Thus, option C is correct.
<h3>What are peptide bonds?</h3>
Peptide bonds are the chemical bonds that are involved in protein polymer formation by linking the amino acid chains. They are also called amide bonds that are present between the nitrogen and the carbonyl atom.
The primary structure of the proteins includes the amino linked by the peptide bonds that make them look like linear structures. The secondary structures have hydrogen bonds and the tertiary have ionic and hydrophilic hydrogen bonds.
Therefore, option C. the primary structure of the protein contains peptide bonds.
Learn more about peptide bonds, here:
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Oxygen gas expands in a container and when pressure is applied it liquifies and occupies a smaller volume
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Answer:
C2H2
Explanation:
Mass of Carbon in CO2
grams
gram
Mass of hydrogen in H2O
grams
gram
We will calculate the % of C and H in the sample
% C
%
% H
%
Number of mole of C
Number of mole of H
Fractional share of C
Fractional share of H
Empirical Formula = CH
Empirical Mass
Molecular mass
Molecular Formula – CHn
N
Molecular Formula = C2H2
On a Space shuttle, LiOH Is used to absorb CO2 to produce LiHCO3
LiOH + CO2 === LiHCO3
Now
58g of CO2 produces 79.3g of LiHCO3
This is the Actual Yield.
Recall
% Yield = Actual yield/Theoretical yield x100
NOW
We have to find the theoretical yield
From the equation of reaction
Now 58g of CO2 reacted
Converting to Moles
mole = Mass/Molar Mass
Molar mass of CO2=44g/mol
Mole = 58/44
=1.318moles of CO2
From the equation Of Reaction.
1 mole of CO2 reacts and Produces 1 mole of LiHCO3
Since their Mole ratio is 1:1
An Equal amount of LiHCO3 will be produced.
So 1.318moles of LiHCO3 will be produced.
Convert this mole to Mass
Mole =Mass/Molar Mass
Mass = Mole x Molar Mas
Molar Mass of LiHCO3 =68g/mol
Mass = 1.318 x 68
Mass = 89.62g.
This is the theoretical Yield.
% yield = 79.3/89.62 x 100
= 88.48%.