A student mixes two solutions: 10.0 mL of 0.0040 mol/L lead (II) nitrate, Pb(NO3)2 (aq), and 15.0 mL of 0.25 mol/L potassium chloride, KCl (aq). If the solubility product constant, Ksp, for lead (II) chloride, PbCl2, is 1.2 x 10-5 at 25° °
C, will a precipitate form when these two solutions are mixed? Why?

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false