General Chemistry Answers

Once upon a time Miss ABC invited 50 enemies to dinner. The piece de resistance was to be poison. In those crude days only two poisons were on the market, poison X and poison Y.

a.If she used more than one-half pound of poison, the guests would detect it and refuse to eat.

b.Miss ABC’s own private witch, a medieval version of the modern planning staff, once pronounced some magic numbers for her in the following doggerel:

One Y and X two,

If less than half,

Then woe to you.

c.Poison X will kill 75 and poison Y will kill 200 people per pound.

d.Poison X costs 100 solid gold pieces per pound, and poison Y 400 solid gold pieces per pound.

After devising a menu to cover up the taste of the poison, ABC found she was very short of solid gold pieces. In fact, unless she were very careful she would not be able to have another scheduled poisoning orgy that month.

Assist the alchemist in solving the problem, using graphical methods. The penalty for failure will be an invitation to next month’s dinner

Which laws are applicable for the conditions when a species approaches purity or the species is

infinitely diluted in a solution? Explain mathematically.

Sodium dodecyl sulfate (SDS) is a detergent used in polyacrylamide gel electrophoresis (PAGE), a

laboratory technique used in separating protein samples according to their molecular weight—smaller proteins travel faster through the gel and end up closer to the bottom, compared to larger proteins, which usually stay closer to the top. Detergents are described to be amphiphilic molecules, as they possess both a non-polar group (usually long hydrophobic functional moieties like long-chain alkyl groups) and a polar group (which may be polar like -OH or charged like phosphate groups).

1. Describe the interaction of SDS with a protein molecule. How will a detergent like SDS affect the protein’s structure?
2. How will SDS affect the overall charge of the protein? Will it affect the overall charge at all?

Remdesivir is classified as a prodrug—that is, it is not the active form of the molecule with the indicated mechanism of action. In vivo transformation of this prodrug results in the following bioactive molecule.

1. What nucleotide does it resemble? How does it resemble your nucleotide of choice?

40 grams of NaCl (sodium chloride) is

dissolved in to 100 grams of water at 50˚C. Is this solution: a. unsaturated    b. saturated    c. super

saturated

What is the volume of 2.43 x 10^23 molecules of N2 gas at STP.

Calculate the number of moles in 168.0 g of HgS

calculate the number of molecules in 15.0grams of CaSO4

Aluminum has a specific heat of 0.900 J/g·°C. How much energy is required to raise the temperature of 140. g of aluminum from 10.0°C to 232.0°C?

 ---------------kJ