A 0.682g sample of impure Na_2HCO_3 yields a solid residue consisting of Na_2HCO_3 and other solid a mass of 0.467g. What was the mass percent of NaCO_3 in the sample? Analysis of a 47.5-gram sample of water revealed a mass percent for lead o...
PercentComposition 1.Aluminumsulfateisasubstanceusedinwatertreatmentplantstohelppurifywater.Writetheformulaforaluminumsulfateandfindthepercentcompositionofallelementsinthiscompound. 2.Cesiumbromideisusedtomakeopticaldevicessuchasprismsandspectrophotometercells.Writetheformulaforcesiumbromideandfindthepercentcompositionofall...