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Which contains the most atoms of chromium? 0.025mol,6.0*10^21 atoms, or 1.5g of Cr?

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Which contains the most atoms of chromium? 0.025mol,6.0*10^21 atoms, or 1.5g of Cr?;2.A compound reported in 1982 has a molecular mass of 834g/mol. A20.0g sample contains 18.3g of iodine and the remainder is carbon. What is the molecular formula of the compound?

 

Paper#15480 | Written in 18-Jul-2015

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