realboytavares realboytavares

09-05-2020
Chemistry

contestada

How many CaH2 formula units are present in 8.294 g of CaH2?

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marzanmmahee marzanmmahee

09-05-2020

RMM of CaH2=20+(1x2)=22
Number of moles or formula units
=mass/RMM
=8.294/22
=0.377

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