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Taya2010 [7]
3 years ago
14

How many moles are contained in the stp 22.4l of n2?

Chemistry
1 answer:
statuscvo [17]3 years ago
8 0
One mole of any gas under STP has volume 22.4 L,
so 22.4 L N2 under STP contains 1 mole of molecules N2.
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What is the mass of 8.12 × 10^23 molecules of CO2 gas? (Atomic mass of carbon = 12.011 u; oxygen = 15.999 u.)
amid [387]

Answer:

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Explanation:

Hello,

In this case, the first step is to compute the molar mass of carbon dioxide as shown below, considering it has one carbon atom and two oxygen atoms:

M=12.011g/mol+2*15.999g/mol\\\\M=44.009g/mol

It is important to notice it is the mass in one mole of such compound. Afterwards, we need to use the Avogadro's number to compute the how many moles are in the given molecules of carbon dioxide as shown below:

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