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How many moles of NaOH are needed to react with 24.36 mL of 0.4921 M oxalic acid solution?
Compute the concentrations of all species in a 0.900 M sodium sulfite solution. If it is given that the ionization constants for H2SO3 are Ka1=1.4x10^-2 and Ka2=6.3x10^-8.
A second-order reaction that destroys compound A via the reaction A to B is occurring in a batch reactor. It is 40% complete after 30 minutes. Determine the rate constant, and the time required to achieve 95% completion?
The initial temperature of the water was 25.4 C and the final temperature of both the water and metal was 36.6 C. If the specific heat "c"
Calculate the fraction of atoms in a sample of argon gas at 400K that have an energy of 10.0 KJ or greater.
sketch the qualitative molecular orbital diagram for the complexes.
you dissolve 0.10 moles of this amino acid in 100 mL of water. What volume of 1M HCl or 1M NaOH do you need to add to the soluion to attain a final pH = 8.6?
The valve connecting a 2.93 L bulb containing a oxygen gas at a pressure of 2.94atm, and a 9.27 L bulb containing carbon dioxide gas at a pressure of 4.52 atm
Calculating the molecular formula of an organic compound. Worked example, using fundamental formula and balanced equations.
a sample of argon gas is at a pressure of 1.24x10^4 kpa and a temperature of 24c in a rigid 25-L tank. How many moles of argon does this tank contain?
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
What are the various uses of radioactivity in healthcare? What are the future trends in healthcare with respect to the use of radioactivity?
More gas is then added to the container until it reaches a final volume of 13.9 L. Assuming the pressure and temperature of the gas remain constant, calculate the number of moles of gas added to the container.
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