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For each of the following three questions 25.0 mL of 0.100 Mpyridine (Kb = 1.70 x 10-9) istitrated with 0.100 M HCl. For each question calculate the pH ofthe final solution after the indicated amount of HCl has been added. That is, treat each question as a separate titration.
Pyridine is monobasic, i.e., each molecule of pyridine accepts onlyone proton from a molecule of acid. Remember that the final volume of the solution is the sum of the initial volume and the volume ofHCl that is added to it.
Calculate the pH after the addition of 12.0 mL of 0.100 M HCl
What is the molarity of 175 mL of a solution containing 2.18 g of Na2SO4·10H2O? 0.00377 M B. 0.644 M C. 0.00878 M D. 0.00118 M E. 0.0387 M
A buffer is made with 25mL of 1.0 M HC2H3O2 and 25mL of 1.0 M NaC2H3O2. Calculate the theoretical pH. I know the pH is 4.74.
Determine the density and atomic radius of tungsten (W) if it crystallizes in a face centered cubic arrangement with cell edge 399 pm.
Alloxanic acid(C4H4N2O5,6.40g,),sodium alloxanate(5.46g) were dissolved in 250.0mL of water. Calculate moles of alloxanic acid dissolved.
Some chambers used to grow bacteria that thrive on co2 have a gas mixture consisting of 95% co2 and 5% o2 what is the partial pressure of each gas if the total pressure of each gas if the total pressure is 735 mm Hg
5.00 g of SO2 and 5.00 g of CO2 were placed in a 750.0 mL container at 50.0 °C. What is the partial pressure of CO2 in the container?
The k1 is on top of the right pointing arow and k2 is below the left pointing arrow and the arrows are like they are in equilibrium. The k3 is above the lone arrow in the second reaction. In the find expression part the N02 is a subscript of P
How many double bonds are present in the "best" resonance structure of the phosphate ion?
A 25.00mL portion of this solution required 17.56mL of hydrochloric acid(0.1396 mol/L) for complete neutralization. Calculate the percent of sodium carbonate in the mixture.
explain methods of industrial preparation of
sample of a gas at 25.0 oC and at a pressure of 3 atm, what will the pressure be if the temperature is raised to 50.0 oC?
A renowned laboratory reports a quadruple-point coordinates of 10.2 Mbar and 24.1 degrees C for four-phase equilibrium of allotropic solid forms
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