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Which of the following refers to particularly stable arrangements of amino acid residues in a protein that give rise to recurring patterns?
a. primary structure
b. secondary structure
c. tertiary structure
d. quaternary structure
e. none of the above
Using a sample of 0.0355 gram of an unknown molecular compound is dissolved in 1.000 g of liquid camphor at 200.0°C. Calculate the molar mass of the unknown compound if the camphor freezes at 157.7°C upon cooling.
Determine the molecular formula of the oxide of phosphorous when it is in its gaseous state.
What is the freezing point of an aqueous 2.65 m calcium chloride (CaCl2) solution? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.
The feed to reactor contains only C 2 H 4 and HBr. if the molar flow rate = 165mol/s, compute the fractional conversion of the limiting reactant?
calcualte the pH at one-half the equivalence pont and at the equivalence point for a titration of 50 mL of 0.100M acetic acid with 0.100M NaOH
efficiency is 2000 theoretical plates, Void volume is 1mL. Calculate the resolution between these compunds.
What is the density of hydrogen gas at 23.0^C and a pressure of 1640 psi?
understand that covalent-network solids are hard and have high melting points and that molecular solids are soft and have low melting points, but how do I determine the difference if given an chemical formula?
How long will it take for a signal to travel that distance assuming that the speed of light in the cable is the same as in a vacuum?
A green leaf has a surface area of 2.00 cm^2. If solar radiation is 1030 W/m^2, how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.
The Vehicle Assembly Building at the Kennedy Space Center in Florida has a volume of 3,666,500 m^3. Convert this volume to liters and express the result in standard exponential notation.
In the titration, 34.67 mL of the sodium hydroxide solution was required to react with 0.1082 g KHP. Calculate the molarity of the sodium hydroxide.
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