You made a 100.0 ml of a lead(ii) nitrate solution for lab but forgot to cap it. the next lab session you noticed that there was only 80.0 ml left (the rest had evaporated). in addition, you forgot the initial concentration of the solution. you decide to take 2.00 ml of the solution and add an excess of a concentration sodium chloride solution. you obtain a solid with a mass of 3.407 g. what was the concentration of the original lead(ii) nitrate solution?

Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.