1) Copper (I) oxide, Cu20, occurs as a reddish mineral called cuprite. If 100.00 g of this oxide contains 88.82 g of Cu, what is the percentage of oxygen in the compound?

Why is silver chloride is an ionic compound

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m