A 4.293 g sample containing Mn2+ is dissolved and treated with excess (NH,), HPO , resulting in the formation of the precipitate MnNH, POH, O. The precipitate is filtered, washed, dried, and then ignited to convert the precipitate to
Mn, P20,. The mass of Mn, P,0, collected was 1.02 g. Calculate the weight percent of Mn2+ in the original sample.
weight percent:
%

What three things determine the shape and size of a puddle when water is poured out onto a surface

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.