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Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 -> NH4+(aq) + NO3(aq) For NH3, Kb = 1.8x10-5. Enter your answer with 2 decimal places. Enter scientific notation as 1.23E4. (a) When ..
one hundred grams of water is saturated with nh4clat 50 degrees c. according to table g if the temperature is lowered
A solution of a weak acid was tested with the indicators used in this experiment. The colors observed were as follows
what is the percent yield if 4.65g of copper is produced when 1.87g of aluminum reacts with an excess of copperii
how many grams of hydrogen are necessary to react comletely with 50.0 g of nitrogen in the following reaction n23h2
After about five minutes of mixing, the final temperature of the solution inside the calorimeter reached 37 C. Calculate the heat capacity of the calorimeter (J/C - joules per degree).
Identify which of the following reactions are acid-base reactions and which are oxidation-reduction reactions. a. For those which are redox reactions state which substance is oxidized and which is reduced. Be specific in your answers, for example ..
Problem- 32.4 mL of 0.153 M HCl(aq) will neutralize 25.0 mL of NaOH(aq) solution of unknown concentration. Calculate the concentration of the NaOH(aq) solution.
What is the dissociation constant, Kd, of a ligand with a percent occupancy (or fractional saturation) of 50% when [ligand] = 10-7 M
A sample of gas occupies a volume of 692 mL at 1.24 atm and 85 oC. Calculate the pressure of the gas if its volume is changed to 484 mL while its temperature is held constant.
For an acid-base reaction, what is the reacting species, that is, the ion or molecule that appears in the chemical equation, in the following acids?
Compute the wavefunction and the probability to tunnel, for a proton in the potential: V(x)=0, when x 0.00 nm, and V(x)=2.0*10-19 J otherwise. Consider this wavefunction to have a total energy of 1.2 eV, and its functional form in the x>0.00 regio..
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