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A 0.100 M solution of the monoprotic weak base methyl amine has a kb = 4.38*10^-4. If 25.0 mL of this base is titrated with 0.110M HCL(aq), determine the following: a) The volume of HCl needed to reach the equivalence point: b) The pH of the solution before the addition of any HCl c) The pH of the solution after the addition of 15.0 mL of HCl. d) The pH of the solution at the equivalence point. e) The pH of the solution after 40.0 mL of HCl are added.
Determine the mass of copper(II) sulfate, CuSO4 will remain after removing all the H2O(water) from 74 grams of CuSO4 5H2O (Also called Blue Vitriol and Bluestone)?
How many grams of dry NH4Cl need to be added to 2.10 L of a 0.500 M solution of ammonia, NH3 , to prepare a buffer solution that has a pH of 8.76? Kb for ammonia is 1.8*10 ^-5.
Question about Half life problem, We are performing an experiment using half-life =4.5 x 10^3 days labeled phenylalanine in which the five atomic hydrogens are labeled.To perform the experiment
does it mean that the solution will shift towards the products because there is excess of reactants? what does it mean when the solution is orange (is it shifting towards products or reactant)?
What is the theoretical yield of SO 3 produced by the quantities described in Part A and How many Oxygen molecules are required to react with 7.82g of S?
if 5.00 g of each NH3, O2, and CH4 are reacted, what mass of HCN will be produced, assuming 100% yield
what tempreture must 0.040 moles of water vapor be heated in a 500ml flask before the pressure in the flask becomes 2 atm.
calculate the mass of sodium nitrate, NaNO3, required to produce 7.00g of oxygen according to the following reaction:
Calculate the pH at the points in the titration of 20.00 mL of 0.318 M NH3 of 0.470 M HCl have been added. For NH3, K_b=1.8*10^-5.
Compute the density of dry air and molar mass at zero degree Celsius temperature and 1.0 atm of pressure.
What is the pH of the solution when the hydronium ion + concentration of 0.15 M CH3COOH is 6.3 × 10.
What mass of C4H6 in grams is consumed in the reaction below when 36.9 grams O2 (g) are also consumed?
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