Question

one dm3 of hydrogen at stp weighs approximately ???

Answer 1

hope this may help you

Answer 2

Concept:

The required conversion for 1 dm³ into L is as follows:

1 dm³=1000m³=1000000 L

Given:

1 dm³ of hydrogen at STP

Find:

Weight of 1 dm³ of hydrogen at STP=?

Solution:

At STP,

1 moles = 22.4 L

1000000 L = 10000000/224  molecules

Number of molecules in hydrogen = 6.022 * 10²³ * 10000000/224

Number of molecules in hydrogen = $2.39*10^{27}$ molecules.

Thus, the number of molecules of hydrogen at STP is $2.39*10^{27}$  molecules.

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