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18 Nov 2019
1. How many moles of He atoms are in 6.46g of He? 2. How many grams of Zn are in 0.356 mole of Zn? 3. How many atoms are there in 16.3 g of S? 4. Calculate the molar mass of the following compounds: (a) CO2 and (b) caffeine (CeHoN402 5. How many moles of CHa are present in 6.07 g of CH?
1. How many moles of He atoms are in 6.46g of He? 2. How many grams of Zn are in 0.356 mole of Zn? 3. How many atoms are there in 16.3 g of S? 4. Calculate the molar mass of the following compounds: (a) CO2 and (b) caffeine (CeHoN402 5. How many moles of CHa are present in 6.07 g of CH?
Collen VonLv2
24 Feb 2019