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Problem- The primary structure of human insulin is shown below. It is composed of two polypeptides chains (chain A and chain B). They are bonded together in two locations. Also shown below is a selection of amino acids. What are the bonds that tie the two chains together and why are they present at these locations?
A) Disulfide bond B) Electrostatic bond C) Van der waals bonds D) Hydrogen bonds E) Dative bonds
I desire help for above question. Illustrate each step for the above problem.
The initial pH of chloroacetic acid is 1.90, (which I found from using the quadratic equation to find x in a RICE table because I was given the initial concentration of 0.124M and told to find the pH of a 10.0 mL solution.)
The fuel used in many disposable lighters is liquid butane C4H10 How many carbon atoms
A 10.1 g sample of CaCl2 is dissolved in 119 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C·..
a cylinder of compressed nitrogen gas contains 867 g n2. if the volume of the cylinder is 22.5 l what is the pressure
Each mole of cyclohexene reacts with four moles of H2O2 to give adipic acid. You added about 3.6 grams of H2O2 to your reaction mixture (12 grams of a 30% solution were added). Calculate the mass of H2O2 required to react with 2.00g of cyclohexene..
To me these seem like the should be counted the same way but one is counted from left to right and one from right to left. Why is that. What is the rule. Keep in mind that I am a new chemistry student.
Molarity is only one of many ways to express concentration. Another is percent mass per volume or %(m/v). For example, vinegar usually contains about 5 %(m/v) acetic acid(5g acetic acid/100 mL vinegar)
Input the SMILES string for the final product formed from the following 2 step synthesis. Step 1: (E)-3-methylpent-2-ene is treated with molecular bromine (Br2) in the presence of water in the cold and dark
The reactions occur in acidic solution. (Use the lowest possible coefficients. Omit states-of-matter in your answer.) (a) MnO4- + H2SO3 ? Mn2+ + SO42-
Question- Alkali metals like na and k dissolve in liquid ammonia to give a blue solution which is due to the absorption of solvated electrons. as a crude model, we can treat the solvated electron as a particle in the box
A layer of peat beneath the glacial sediments of the last ice age has a carbon-14/carbon-12 ratio that is 21.0% of that found in living organisms
A solution is created by adding 0.05 moles of H2CO3 (3.1 g, total mass) to 5-L of water, resulting in a pH of 4.2. What is the alkalinity of this water (in meq/L)? Does the answer make sense, why or why not
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