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1. Describe the ran world hypothesis
2. A) list the types of non covalent interactions that are important in providing stability to the three dimensional structures of macromolecules.
(B) why is it important that these interactions be noncovalent , rather than covalent, bonds?
How do cells maintain a high regulation of cometing anabolic pathways, especially using glycolysis and gluconeogenesis
A hypothetical solution forms between a solid and a liquid. The values of the thermodynamic quantities involved in the process are shown.
Approximately how many grams of monosodium succinate (FW = 140 g/mol; succinic acid pK2=5.64) and disodium succinate (FW = 162 g/mol) must be added to 1L of water to produce a solution with a pH 5.28 and a total solute concentration of 100 mM.
Calculate the pH of the solution that results when 20 ml of 0.100 M CH3COOH is mixed with 10.00 mL 0.200 M NaOH
When Butanoic Acid is treated with sodium borohydride 1-butanol is not obtained. But bubbling is still observed as well as heat is produced. a) Why is 1-butanol not obtained. b) Explain what is the product of the reaction
In an experiment to determine the formula of a salt M2( SO4)3 x XH2O a sample of 2.239g of the sample was reacted with BaCl2. After filtration and drying the sample of BaSO4 weight 3.329g
In air and according to Stokes Law, the settling rate of particles is proprotional to the squares of their diameters, if they have the same densities
A 750 mL vessel contains 2.50 g of an unknown gas at a temperature of 0 C and pressure 300 mm Hg. A small sample of this gas is removed from the vessel and transferred into a new vessel at 500C and pressure 760 mm Hg. What is the density of gas af..
If only 4.000M HCl was available for you to use, calculate the volume of 4.000M HCl solution required to completely react with 1.700g of Na2CO3
How many grams of F2 are needed to produce 237 g of PF3 if the reaction has a 80.4% yield?
The maximum # of stereoisomers that are possible for a given molecule can be determined from the formula, 2^n, where n is the nubmer of stereocenters in the molecule.
Solid cupric nitrate as well as aqueous potassium hydroxide is combined with water in a test tube. A deep blue precipitate forms in the test tube. State a complete chemical reaction that accounts for the formation of the solid.
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