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When the concentrations of CH3Br and NaOH are both 0.165 M, the rate of the reaction is 0.0050 M/s. (c) What is the rate of the reaction if the concentrations of CH3Br and NaOH are both increased by a factor of four?
The enthalpy of fusion of ethanol is 5.02 kJ/mol, and its enthalpy of vaporization is 38.56 kJ/mol.
How long will it take 10.0 mL of oxygen gas to effuse through a porous barrier if it has been observed that 81.7 minutes are required for 10.0 mL of Cl2 gas to effuse through the same barrier?
To determine the concentration of a sodium thiosulfate solution as in this experiment, a student pipetted 25.0mL of 0.100M potassium iodate (KIO3) solution into a 125mL Erlenmeyer flask. Potassium iodide and sulfuric acid were added as in this exp..
Nitrogen gas reacts with hydrogen gas to produce ammonia by the following equation. N2(g) + 3H2(g) ---> 2NH3(g) A: If you have 3.98g of H2, how many grams of NH3 can be produced?
The catalyzed reaction took 2 minutes. The non-catalyzed reaction took 30. Solutions in each consisted of 5 mL phosphate citrate buffer
What are some of the differences between water obtained from a river that flows past farmland and water obtained five miles
The total molarity of acid and conjugate base in this buffer is .100 M. A student adds 7.10 mL of a .250 M HCl solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760
The mass spectrum of a compound that contains two bromine atoms gives isotope peaks with relative intensities of 1:2:1 for the M, M+2 and M+4 peaks, respectively. Explain why.
The isothermal compressibility of graphite is 1.56 × 10-7 bar-1. At what pressure is density equal to density of diamond?
Sodium oxalate, Na2C2O4, in solution is oxidized to CO2 by MnO4- which is reduced to Mn2+. A 50.1 volume of a solution of MnO4- is required to titrate a 0.339 g sample of sodium oxalate.
Calculate the binding energy E B of the helium nucleus 4 /2 He .Express your answer in millions of electron volts to four significant figures.
At its boiling point, the vaporization of 0.579 mol CH4 requires 4.76 kJ of heat. What is the enthalpy of vaporizating of methane?
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