What is the molar mass of the unidentified substance

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(a) 1.381×10-4 mol of an unidentified gaseous substance effuses through a tiny hole in 89.2 s. 

Under identical conditions, 1.710×10-4 mol of argon gas takes 82.2 s to effuse. 

What is the molar mass of the unidentified substance (in g/mol)?

(b) The percentage C by mass in the above unidentified substance is 83.2%. It may also contain H and/or O, but no other element. 

What is the molecular formula of the substance? 

(In typing this formula use the convention of C first, H second and O last. For example, C6H8O2 would be C6H8O2.) 

(c) Under identical conditions, how many moles of cyclopropane (C3H6) gas would effuse in 93.6 s?

Reference no: EM131838085

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