In an experiment to determine the percentage composition of an oxide, the element is allowed to burn in air and the oxide formed is collected. Describe how we can determine the mass of the oxygen in the air that was reacted.
solution of sodium thiosulfate of volume V=50ml and molar concentration C=0.1mol/l is prepared by dissolving a mass(m) of solid penta-hydrated sodium thiosulfate Na2S2.5H2O in water.
Calculate the mass(m).
a 3.56 g sample of iron powder was heated in gaseous chlorine,and 10.39 g of an iron chloride was formed. what is the percent composition of the compound? show the reaction equation.
"assignmentexpert.com" is professional group of people in Math subjects! They did assignments in very high level of mathematical modelling in the best quality. Thanks a lot