5 L of gas at STP weight 6.25 g . What i...

5 L of gas at STP weight 6.25 g . What is the gram molecular weight ?

A

1.25

B

14

C

28

D

56

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Knowledge Check

A sample of unknown gas is placed in a 2.5 L bulb at a pressure of 360 Torr and at a temperature of 22.5^(@) C and Is found to weight 1.6616 g. What is the molecular weight of the gas?

A

80 g

B

64 g

C

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If 300 ml of a gas weigh 0.368 g at STP, what is its molecular weight ?

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30.16

B

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C

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D

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A sample of a gas at 100^(@)C and 0.80 atm pressure has a density of 1.15 g L^(-1) . What is the molecular weight of the gas?

A

`88.0`

B

`44.0`

C

`28.0`

D

`46.0`

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