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I. False - Since both gases contribute to the total mass, the number of moles of NO does not necessarily need to be greater than the number of moles of CH4.

II. True - If the total mixture mass is 17 grams and CH4 is 8 grams, then the remaining mass must be of NO.

III. True - If the total moles of the mixture is 0.8, and CH4 is 0.5 moles (8g/16 g/mol), then the moles of NO would be the remaining 0.3 moles.

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1y ago

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