The magnesium and calcium ions present in seawater ([mg2+] = 0.059 m and [ca2+] = 0.011 m) can be separated by selective precipitation with koh. what is the concentration of [mg2+] when ca(oh)2 starts to precipitate? ksp mg(oh)2 = 2.1 x 10-13 and the ksp ca(oh)2 = 4.7 x 10-6

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt