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Compare the melting temperatures of (Pro-Pro-Gly)10 and 10 (Pro-Hyp-Gly) .
What is the structural basis for the difference?
at a given temperature the equilibrium constant kp for the decomposition of dinitrogen tetraoxide to nitrogen dioxide
what is the maximum number of grams you could obtain if you recrystallize 28 g of cholesterol from 100 mL of methanol
Calculate the resulting pH if 400 mL of 0.50M HCl is mixed with 300 mL of 0.080 M NaOH.
in the hall-heroult process anhydrous aluminum oxide isreduced to aluminum according to the chemical equation 2al2o3 s
A stock solution is prepared by adding 20 mL of 1.31 M AlCl3 to enough water to make 74 mL. What is the Al3+ concentration of 45 mL of the stock solution?
What mass of hydrogen can be produced from 2.90 g of aluminum and 14.0 g of HCl in the above unbalanced reaction?
A volume of 70.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 18.2 mL of 1.50 M H2SO4 was needed? The equation is 2KOH+H2SO4K-->2SO4+2H2O
What is the percent yield of CO2 if the expected theoretical yield is 8.11·10-3 mol? Vapor pressure of water at 20.0 oC is 17.55 mmHg .
Calculate the Madelung constant for AgCl(s) given that the lattice energy is 912 kJ mol-1, and that the Ag-Cl distance is 277 pm. What crystal structure is this?
Question- What is the molality of the 50.0 mass % ethylene glycol (C2H6O2) solution in the water used for automobile antifreeze
The equation of state of a nonideal gas is PVm (1-(alpha x P) = RT, where alpha is a function of temperature only. acquire an expression for the residual volume of this gas as a function of R,T and alpha.
This reaction is a catalytic hydrogenation that only partially reduces an alkyne. Consider whether the hydrogenation
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