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State (Phase) of Alkanes

what is molec...

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what is molecular weight of oygen?

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Q. At what temperature will nitrogen molecules have same R.M.S. speed as oxygen molecules at 400K (molecular weight of oxygen=32,molecular weight of nitrogen=28)

Q. At what temperature is the "effective" speed of gaseous hydrogen molecules (molecular weight = 2) equal to that of oxygen molecules (molecular weight = 32) at

47^{\circ} C

Q. If the atomic weight of oxygen were taken as

90

, then what would be the molecular weight of water?

Q. A compound used in making nylon, is 43.8% oxygen. There are four oxygen atoms per molecule. What is the molecular weight of compound ?

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2.47

times heavier than that of oxygen. What is its molecular weight?

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State (Phase) of Alkanes

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