chapter 10 Flashcards
Gold is reacted with chlorine gas according to the reaction..
2Au +3 Cl2—> 2AuCl3
Use the information Mass of gold= 39.4 Mass of chlorine= 21.3g Theoretical yield= ?? Actual yield = 35.2 g
58.1%
According to this chemical reaction, which is the number of grams of Fe produced from 14 moles of H2?
Fe3O4(cr)+4H2(g)—> 3Fe(cr)+4h2O(l)
587g
Which is the correct mole ration of k3PO4 to KNO3 in the chemical reaction?
3Mg(NO3)2+2K3PO4–> Mg3(PO4)2 + 6KNO3??
1:3
Which is the correct mole ratio for aluminum chloride to chloride in the chemical reaction?
2AlCl3+3Br2–>2AlBr3 + 3Cl2
2:3
How many moles of KBe will be produced from 7 moles of BaBr2??
BaBr2 + K2SO4—> 2KBr + BaSO4
14 moles
How many moles of Al would be produced from 20 moles of A l2O3?
2Al2O3–> 4Al + 3O2
40 moles
How many grams of water are produced when 2.50 mol oxygen reacts wit hydrogen?
H2 + 2O2 –> 2H2O
45.0 g
How many grams of O2 are required to produce 358.5 grams of ZnO?
2Zn + O2 —> 2ZnO
70.5g
How many grams of bromine are required to react completely with 37.4 grams aluminum chloride?
2AlCl + 3Br2 —> 2AlBr3 + 3Cl2
67.2 g
At high temperatures, sulfur combines with iron to form the brown-black iron (II) sulfide:
Fe(s) + S (l) –> FeS(s)
In on experiment , 7.62g of Fe are allowed to react with 8.67 g of S.
What is the limiting reagent?
Fe
A chemical reaction can theoretically produce 137.5 grams of product, but in actuality 11.29 grams are produced. Which is the percent yield for the reaction?
82.1%
