abelkoontz Posted December 22, 2016 Report Share Posted December 22, 2016 I don't get how to do question b) - If the mole ratio is the same then why do you need to work out everything? omfg i dont get it. how do you even work this out. Reply Link to post Share on other sites More sharing options...
kw0573 Posted December 22, 2016 Report Share Posted December 22, 2016 If you get a) then you can find the mol ratio. But question b) asks for mass. It's like saying you have 5 apples and 5 cars. They are both five but the masses are different because the mass/apple and mass/car are different. Therefore, once you know the mass of SO2, you can use molar mass to find the mol ratio with PbS, then convert back to mass using the molar mass of PbS. Reply Link to post Share on other sites More sharing options...
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