Chemistry, asked by shanvishwa, 1 year ago

The reaction between aluminium and ferric oxide can generate temperatures up to 3273 K and is used in welding metals. (Atomic mass of AC = 27 u Atomic mass of 0 = 16 u)
2Al + Fe2O3 Al2O3 +2Fe; If, in this process, 324 g of aluminium is allowed to react with 1.12 kg of ferric oxide.
i) Calculate the mass of Al2O3 formed.
ii) How much of the excess reagent is left at the end of the reaction?

Answers

Answered by Ajayprajapati111

I can give you method to solve this type of problems
1 . find no. of moles of reactant i.e given mass divded by molar mass
2. then observe the reaction ( first we need to balance it) 2 moles of Al reacted with 1 mole of Fe2O3
here you have to divide no . of moles by coefficient of reactent then here you got the limiting reagent which less
3 . once you got your limiting reagent you can easily solve this type of problem by mole mole analysis
if you are week in that go through some vedios at you tube

shanvishwa: I didn't solve this prblm so plz hlp me for above qusting..

Ajayprajapati111: i guess just solving a problem is not your target . i suggest you go through topic related vedios on you tube and clear your concept then try to solve it . where you can get some problem too this may increase your strength too . and i Know this easiest one

Ajayprajapati111: i am not giving you sol because it includes to much calculations but i am giving you another way which is quite better

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