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What volume, in mL, of oxygen are required to react completely with 157 mL of C4H10 at the same pressure. Calculate your answer to the correct number of sig figs and enter 350 as 3.50E2.
The equilibrium constant Kc for the reaction C--><-- is 5.10e-5. The initial composition of the reaction mixtures is [C]=[C]=[E]= 1.10e-3 M. What is the equilibrium concentration of C,D,E
Bob dissolved .36 grams of KHP in 15 mL of water. He found out that it required 20 mL of NaOH to reach the endpoint the endpoint of the titration.
What is the [H3O+] of a solution measured to be 0.2 M in sodium acetate and 0.4 M in acetic acid. Ka = 1.8 x 10^-5
When using a spectrophotometer to determine absorbtivity of a group of different concentrations of a metallic ion, what is the reason for choosing a certain wavelength in nm
The same reactant decomposes with a half-life of 211 s when its initial concentration is 0.160 M. Determine the reaction order
A quantity of 6.882g of and organic compound is dissolved in water to make 276.0 mL of solution. The solution has an osmotic pressure of 1.43 atm at 27 degree celsius. The analysis of this compound shows that it contains 41.8% C, 4.7% H, 37.3 % O ..
A cell that uses bromine to oxidize hydrogen H^+ under standard conditions at 298 K has a positive potential.
a car radiator coolant, loses 999J of heat. What was the initial temperature of the ethylene glycol if the final temp is 32.5 degrees C
A student determines the amount of tetrachlorethylene in a contaminated well water using a purge and trap technique. The student takes 150.0 mL of the well water, spikes the well water with 100 microlitres of 50 ng carbon tetrachloride/mL and purg..
octane has a density of 0.692 gml at 20 degrees celsius. how many grams of o2 are required to burn 1.00 gal of
10.1 g cao is dropped into a styrofoam coffee cup containing 157 g h2o at 18.0degc. if the following reaction occurs
Calculate the lattice enthalpy (?Hl° in kJ/mol) of the MF2 metal fluoride using the following data: Bond dissociation enthalpy of F2(g) = 159 kJ/mol Electron affinity of F = -328 kJ/mol Enthalpy of sublimation of M = 123 kJ/mol First ionization en..
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