Lewis Structure

Draw Lewis Structure for CaO

Lewis Structure

Lewis structure for potassium bromide?

VSEPR notation

What is the VSEPR notation of the following: A. COCl2 B. ClO2- C. PH3

Precipitation of inorganic (metals) in a water treatment system?

Please help and explain to me clearly......a wastewater contains various cations such as Na, K, Mg, Ca, Ba, Fe, Cu, Zn, and Al; the pH of the wastewater is approx. 6.0 To that wastewater is added H3PO4 (phosphoric acid) in an approximate dose of .00034 gals of H3PO4 per gallon of wastewater. I'm less concerned about the stoichiometry and believe I can figure that out, but I did notice in the lab that the greatest mass and volume of precipitate was aluminum, then zinc etc. Help me understand specifically why the dissociated phosphate ion would prefer to bond with cations like Al and Zn. I think I know why but help me better understand.

Calculate how much energy a wind turbine produces in a year.

Assume a wind turbine with a hub 50 meters above the ground, a rotor diameter of 40 meters and a wind-conversion efficiency of 25 percent. The turbine operates in an area with an average wind-power density of 550 watts/sq meter at 50 meters altitude. How much electricity (kwH) can the turbine generate per year? Wind densities greater than or equal to 500 watts/sq meter at an altitude of 50 meters are present on 0.900 percent of the land area of the US. If, on average, wind farms contain 8 turbines/sq km, how much electricity (kwH/yr) could be generated from these wind turbines? (The area of the US is 7,827, 989 sq km).