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In the following amino acid sequences, what amino acids will interact if the peptide forms an alpha-helix? Do you expect this structure to be stable? Why or why not?
The freezing point of an aqueous solution containing 15 g of a nonelectrolyte in 150 mL water is -5.4°C. What is the molecular weight of the compound? Kf = 1.86°C/m for water.
the calcium oxide is added to seawater and a number of changes occur. first calcium oxide reacts with water to form
How would you figure out the hybridization of the nitrogen in HNO3? I know the steric number is 4 so wouldn't it be sp3
The system is now cooled, and the process is stopped when liquid is first observed to condense onto the glass. What is the final temperature
.375 kg of water are in a well insulated container at 21.3 degrees celsius. After 4.184 kJ of heat is added to the water, what is the final water temperature
In preparation of p-iodonitrobenzene, the reaction is driven forward by the formation of N2 gas for two reasons. Reason number one is thermodynamic and reason number two is kinetic. Explain both of these reasons
A 10mL aliquot of this solution, diluted to 25mL, yielded a signal of .235 units. A second 10 mL aliquot was spiked with 10mL of 1ppm standard solution of the analyze and diluted to 25mL. The signal for the spiked sample was .502 units. What is th..
When aqueous solutions of cobalt (II) chloride and sodium hydroxide are mixed what precipitate forms
Write a balanced molecular equation for these ten combinations.
Describe how you would prepare each of the following aqueous solutions. - 230 g of a solution that is 0.60 molal in Na2CO3 starting with the solid solute.
What is the molecular geometry of a molecule with 3 outer atoms and 2 lone pairs on the central atom
A new potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As a research technician at Pharma-pill, you are told that X-281 is a monoprotic weak acid, but because of security concerns, the actual ch..
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