find the number of moleculesin 8 gram of oxygen – InterviewSolution

1.

find the number of moleculesin 8 gram of oxygen

Answer»

molar mass of oxygen molecule = 32gmoles of O2 in 8g = 8/32 = 1/4 moles

so, no. of molecules = 1/4*Na = 6/4×10²³ = 1.5×10²³ molecules

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