Two step mole conversions

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PleaseHelp
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Two step mole conversions

Post by PleaseHelp »

Please help me solve im stuck
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ChenBeier
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Re: Two step mole conversions

Post by ChenBeier »

Not really clear what is meant here. If I grain the Calciumnitride I can get a lot of particles depending on the grain size.

The formula is Ca3N2. You can calculate the mole from the given mass. 1 mol is 6,023x10^23 particles.
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Dhamnekar Winod
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Re: Two step mole conversions

Post by Dhamnekar Winod »

A sample of Calcium Nitride Ca3N2 📖having a mass 6.78 grams have 2.75e22 atoms which is= 0.0457 mole.
Last edited by Dhamnekar Winod on Fri Feb 05, 2021 6:03 am, edited 2 times in total.
Any science consists of the following process. 1) See 2)Hear 3)Smell,if needed 4)Taste, if needed 5)Think 6)Understand 7)Inference 8)Take decision [Believe or disbelieve, useful or useless, true or false, cause or effect, any other criteria]
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ChenBeier
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Re: Two step mole conversions

Post by ChenBeier »

Calculation is wrong. Molar mass of Ca3N2 is 148 g/mol.
6,78 g is then 6,78g/148 g/mol = 0,00452 mol what guids to 2,76 x 10^22 particles.
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Dhamnekar Winod
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Re: Two step mole conversions

Post by Dhamnekar Winod »

I am sorry. I computed for CH₃N₂. I shall edit my answer now.
Thanks for finding out error in the computation
Any science consists of the following process. 1) See 2)Hear 3)Smell,if needed 4)Taste, if needed 5)Think 6)Understand 7)Inference 8)Take decision [Believe or disbelieve, useful or useless, true or false, cause or effect, any other criteria]
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