Answer:
The Content in the tubes is:
tube 1:<em> Fat</em>
<em>tube 2: Lactose</em>
tube 3: Insulin
tube 4: RNA
tube 5: Lysine
Explanation:
tube 1: Fat is always not compatible with water it means hydrophobic
tube 2: For rejection of the other tubes the last molecule to assigned a tube is lactose due to we do not have a specific test information for tube 2
tube 3: The insulin has a two disulfide bonds and is the only molecule with sulphur atoms.
tube 4: The nitrogen based compounds that belongs to the RNA are binded with phosphate groups all around its chain, so the presence of phosphate indicates that is RNA.
tube 5: Because was the only one who does not hydrolyse it is an aminoacid.
finally it says that in the tubes 3, 4 and 5 has nitrogen, the only 3 compound with nitrogen are Lysine, insulin and RNA.
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The Newman projection gives the view of the molecule. In molecule A the torsional strain and in B steric strain are present because of the gauche methyl group.
<h3>What is a torsional strain?</h3>
The Newman projection depicts the molecules in the head-on view and uses the letters and the lines to represent the molecule. The torsional strain is because of the molecule's resistance to the twisting.
The steric strain is the Vander wall strain that is due to the forced interaction of the molecules separated by covalent bonds resulting in molecular potential energy.
The diagram for the question is attached below.
Therefore, the correct blanks are <u>torsional</u>, <u>steric</u>, and <u>gauche</u>.
Learn more about torsional strain here:
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The formula of acetic acid is CH3COOH => C2H4O2.
So, the acetic acid has the same number of atoms of carbon (C) than of oxygen (O).
Therefore, the sample that contains 96.5 moles of carbon, will contain also 96.5 moles of O.
Answer: 96.5 moles of oxygen.