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A 50.0 mL solution of 1.2 M HCl at 24.1 degrees Celsius is mixed with 50.0 mL of 1.3 M NaOH, also at 24.1 degrees Celsius, in a coffee cup calorimeter. After the reaction occurs, the temperature of the resulting mixture is 29.8 degrees Celsius. The density of the final solution is 1.05 g/mL. Calculate the molar heat of neutralization. Assume the specific heat of the solution is 4.184 J/g*degrees C. The heat capacity of the calorimeter is 32.5 J/degrees C.
You need to produce a buffer solution that has a pH of 5.06. You already have a solution that contains 10 mmol (millimoles) of acetic acid. How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution? T..
Can anyone help post a separation scheme for eugenol from cloves using steam distillation first and then extraction
Hexane has a vapor pressure of 100 torr at 15.8 C and 400 torr at 49.6 C. What is its deltaHvap
Use standard enthalpies of formation to determine Horxn for: 3NO2(g) + H2O(l) ? 2HNO3(aq) + NO(g) Enter in kJ. -133.5 Find the change in internal energy for this reaction.
Given the hypothetical redox reactions involving substances A, B, and C: A + B+ g? A+ + B C + A+ g? C+ + A B + C+ g? no reaction What is the arrangement of the substances in their order from strongest reducing agent to weakest reducing agent
What is the equilibrium constant expression for the following reaction- Pb2+(aq) + 2I?(aq)?PbI2(s) Choose from the list below and enter the letters alphabetical order.
In running column chromatography under the following conditions, you get results that are less than ideal. Consider the situation in each case and suggest a correction.
In an investigation of the electron absorption spectrum of a particular element, it is found that a photon having wavelength of 500 nm provides just enough energy to promote an electron from the second quantum level to the third. What is the energ..
What is the pH of a mixture of 100.0 ml of 0.01M NaH2PO4 and 100.0 ml of 0.01 M Na2HPO4.
PbCl_4_ solution reacts with 20.0 mL of (NH_4)_SO_4_, what is the molarity of the (NH_4)_SO_4_?
The ratio of Fe^2+ to Fe^3+ concentrations in a solution is 1.0 x 10^3. ([Fe^2+]/[Fe^3+]) = 1.0 x 10^3. Calculate the potential of the solution relative to the saturated Ag/AgCl reference electrode, Eref = 0.204. E^0 Fe^3+/Fe^2+ = +0.771
The density of titanium is 4.51 g/cm^3. What is the volume (in cubic inches) of 4.0lb of titanium. Express your answer using two significant figures.
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