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Topic: Relative atomic mass  (Read 395 times)

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Offline Bird of paradise

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Relative atomic mass
« on: September 11, 2023, 09:50:27 PM »
A compound has a formula M3N where M is a metal element and N is nitrogen. It contains 0.673 grams of N per gram of the metal M. Determine the relative atomic mass of M and its identity?
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Offline Hunter2

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Re: Relative atomic mass
« Reply #1 on: September 12, 2023, 01:18:13 AM »
Show your own atempt first.
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Offline Hunter2

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Re: Relative atomic mass
« Reply #2 on: September 12, 2023, 06:16:02 AM »
Calculate the moles of nitrogen N first.
How many moles of Metal correspond to it?
Backward you can calculate the molar weight from this number and the given mass.
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Offline ProfOxidizer

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Re: Relative atomic mass
« Reply #3 on: September 18, 2023, 08:58:58 AM »
The metal M is lithium with atomic mass equal to 6.94 u.
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Offline Hunter2

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Re: Relative atomic mass
« Reply #4 on: September 18, 2023, 12:03:55 PM »
Please dont give a final answer.
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Offline ProfOxidizer

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Re: Relative atomic mass
« Reply #5 on: September 18, 2023, 01:06:03 PM »
Quote from: Hunter2 on September 18, 2023, 12:03:55 PM
Please dont give a final answer.

Ok, sorry. It was inappropriate.
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