A 100 mL sample of 0.25 M CH3NH2(aq) is titrated with a 50 mL of 0.25 M HNO3(aq). Select ALL main components (greater than 0.001 moles, besides H2O) that would be present in the solution after adding HNO3. Kb of CH3NH2 is 4.4 LaTeX: \times×10−4.A. NO3−
B. CH3NH3+
C. CH3NH2
D. H3O+

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)