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Consider the reaction: H2(g) + CO2(g) ? H2O(g) + CO(g) is 4.2 at a 1650C. Initially 0.50 mol of H2 and .50 mol of CO2 are injected into a 5.0 L flask. Calculate the concentration of CO at equilibrium
Enzyme labeling can be used to map the structure of the active site of an enzyme using an affinity label, a molecule that is structurally similar to the substrate
the specific heat of an unknown metal is found to be 0.233 j kg. The law of dulong and petit predicts a molar heat capacity of J/K mol. Use this law to estimate the molar mass of the element.
How many resonance structures are there for the cyclohepatrienyl cation? Draw them. Are carbon-carbon bonds equivalent?
hydroxylamine nitrate contains 29.17 mass % N, 4.20 mass % H, and 66.63 mass O. If its molar mass is between 94 and 98 g/mol, what is its molecular formula?
A first order reaction has a rate constant of 0.342 sec^-1 at 29.5 degrees C. If the activation energy is 69 kJ, calculate the temperature in degrees C at which the rate constant is 0.428 sec^-1.
HF is a stronger acid than HBR because F has greater electronegativity than Br 2) the acid (HA) strength will increase when the H-A bond strength increases
Propanol freezes at -89.5 degrees C and boils at 82.3 degrees C. What quantity of heat is needed to convert 10.0 g of solid 2-propanol at -89.5 degrees C to a vapor at 82.3 degrees C?
The final temp of the water is 78.26 degrees F. Calculate the specific heat of the metal. Assume that all energy lost by metal is gained by the water.
Saturated steam at 1 atm condenses on a vertical plate which is maintained at a temperature 99 C. If the rate of heat transfer by condensation is 180 KW, determine the rate at which the condensate drips off the plate at the bottom.
a) Write the next ionic equations for the precipitation reaction or reactions that occur. b) What are the spectator ions in the solution?
A 0.5220 g sample of an unknown monoprotic acid was titrated with 9.98×10?2 M NaOH . The equivalence point of the titration occurs at 23.70 mL. Determine the molar mass of the unknown acid.
You need 70.2J to raise the temperature of 34.0 g of ammonia, NH3 (g), from 23.0C to 24.0C. Calculate the specific heat of ammonia.
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