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Propionic acid and methyl acetate are isomers. Which has the higher boiling point and why? Which one would have the greater Rf value on TLC? Why?
Given tyrpsin digest yields the following amino acid sequences: k, tyk, wag, and spwr and a chymotyrpsin digest yields ag, rw, ty, and kkspw. what is the primary amino acid sequence of the antibiotic peptide
A scientist wants to make a solution of sodium phonsphate for a lab experiment. How many grams of sodium phosphate will be needed to produce 475 ml of solution that has a concentration of Na+ ions of 1.50 M?
How many ml of 0.318 M K2Cr2O7 are needed to completely oxidize 179 ml of 0.768 M tin (II) chloride to tin (IV)?
After running the reaction for some time, we collect the product and find a total of 3.1 x 10-3moles of COOH groups. What is the molecular weight of the material? Extent of reaction?
Determine the concentration of the HCL solution from the data for the standardization of the HCl with the Na2CO3 Na2CO3 had 0.0826 grams in 25ml of water Initial volume of HCl in the burette was 50ml Volume of HCl
Calculate the mass of KHC8H4O4 ( molar mass 204.44 g/ mol) that reacts with 15 mL of the NaOH solu-tion in Part A. 3. NaOHsolu-tioninPartA.3.
You believe you have cracked a secret code that uses elemental symbols to spell words. The code uses numbers to designate the elemental symbols.
The density of water = 1.000 g/mL. The liquid's final volume is not changed by adding the solid. The calorimeter loses only a negligible quantity of heat.
Determine the osmotic pressure of a solution that contains 0.042 g of a hydrocarbon solute (molar mass = 340 g/mol) dissolved in benzene to make a 350-mL solution. The temperature is 20.0°C.
Consider a Hydrogen atom with the electron in the n = 6 shell. What is the energy of this system? (The magnitude of the ground state energy of the Hydrogen atom is 13.6 eV.)
suppose the flame on a gas burner emits light just like a blackbody. The flame appears blue, emitting most of its light at a wavelength of 475 nanometers.
It takes 54.0 J to raise the temperature of an 10.3g piece of unknown metal from 13.0C to 25.0 C. What is the specific heat for the metal?
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