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- 1. Multiple ChoiceWhat mass of O2 is required to produce 14.5g of CO2 if the reaction has a 65.0% yield?
CH4 + 2O2 → CO2 + 2H2O22.3g32.4g10.5g5.27g - 2. Multiple ChoiceIf 39.0 g of C6H6 reacts with excess chlorine and produces 30.0 g of C6H5Cl in the reaction
C6H6 + Cl2 → C6H5Cl + HCl
what is the percent yield of C6H5Cl?53.4%56.0%39.0%61.4% - 3. Multiple ChoiceHow much AlCl3 is produced upon reaction of 4.50 moles of Al and 10.5 moles of HCl with a 36.5% yield?
2Al + 6HCl → 2AlCl3 + 3H2170.g191g6,970g10.5g - 4. Multiple ChoiceNitric oxide (NO) is made from the oxidation of NH3 according to the equation
4NH3 + 5O2 → 4NO + 6H2O
If an 8.5 g sample of NH3 gives 12 g of NO, what is the percent yield?15.0%80.1%12.0%53.3% - 5. Multiple ChoiceWhich of the following percent yields are impossible?
I. 4%
II. 64%
III. 106%
IV. 164%I and II onlyIII and IV onlyI, II, and III onlyWith chemistry, ALL things are possible. - Answer choicesTagsAnswer choicesTags