The volume of water added moving a half-drop of titrant from the tip of the buret to the analyte
solution during the end of the titration may be ignored in your calculations. Why is this so?

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.)

How might this scientific phenomena be explained? a paper clip floats on water.

Which samples do the atoms have the least kinetic energy