Calculate the molarity of the solution produced by mixing the following substances. (Assume that the volumes are additive.)
(a) 40.0 mL of 0.160 M NaCl and 65.0 mL of 0.133 M NaCl
and
Using modern analytical techniques, it is possible to detect strontium ions in concentrations as low as 2.0e+02 pg/mL. What is this detection limit expressed in each of the following units?
(a) molarity of Sr2+
(b) Sr2+ ions per cubic centimeter