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# Chemistry - Moles Watch

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1. Can someone help me with this question...How many moles are there in a)32 grams of copper and b) 66g of CO2???

Thanks
2. Use moles=mass/mr
3. (Original post by DebbieRose)
Can someone help me with this question...How many moles are there in a)32 grams of copper and b) 66g of CO2???

Thanks
If @I hope you live didn't explain it enough. Moles=Mass/Molecular Formula
So for a the Mr of Copper is 63.5. So its simple from there. 32 / 63.5 = 0.5 moles
4. (Original post by 10Fatanda)
If @I hope you live didn't explain it enough. Moles=Mass/Molecular Formula
So for a the Mr of Copper is 63.5. So its simple from there. 32 / 63.5 = 0.5 moles
Thanks
5. (Original post by I Hope You Live)
Use moles=mass/mr
Thank you

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