8.0 g of iron is reacted with 8.0 g of water according to the
chemical equation shown below. Which one of the following
statements is false?
3 Fe(s) + 4 H2O(l) →
Fe3O4(s) + 4
H2(g)
11.1 g of Fe3O4 are produced. |
Mass is conserved in this reaction. |
Water is the limiting reactant. |
4.56 g of H2O are left over. |
8.0 g of iron is reacted with 8.0 g of water according to the chemical equation...
16. How many grams of steam and iron must react to produce 375 g of magnetic iron oxide, Fe3O4? 3 Fe(s) + 4 H2O(g) Fe3O4(s) + 4 H2(g) 18. Mercury can be isolated from its ore by the reaction 4 HgS + 4 CaO → 4 Hg + 3 CaS + CaSO4 (a) How many moles of CaS are produced from 2.5 mol CaO? (b) How many grams of Hg are produced along with 9.75 mol of CaSO4? (c) How many...
Chlorine gas reacts with phosphorus to produce phosphorus pentachloride as shown in the chemical equation below. What is the maximum number of grams of PCls are produced from 3.5 g of Cl2 and excess P? 5C12(g) + 2P(s) → 2PC13(s) 2) What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 with 8.00 g of aluminum according to the unbalanced chemical equation below? Al(s) + Cr2O3(s) → Al2O3(s) + Cr(s) Ammonia...
The reaction of iron and water vapor results in an equilibrium 3 Fe(s) + 4 H2O (g) ⇋ Fe3O4 (s) + 4 H2 (g) Kc = 5.0 at 800.°C. What is the concentration of water present (in M) at equilibrium if the reaction is initiated with 7.5 g of H2 and excess Fe3O4 in a 15.0 liter container?
When 12.073 g of calcium metal is reacted with water, 0.705 g of Hydrogen gas is produced. Using the following unbalanced equation, calculate the percent yield for the reaction? Enter the number with 2 decimal places. Ca(s) + H2O(l) → Ca(OH)2(aq) + H2(g) unbalanced chemical equation
Iron(III) oxide (Fe ) is produced according to the following equation: 4 Fe(s) + 3 0 (9) 2 Fe (s) If the reaction occurs with an 73.9% yield, what mass of iron should be reacted to produce 63.0 grams of Fe ?
The reaction of Fe304(s) with hydrogen(g) to form iron(s) and water(g) proceeds as follows: >3 Fe(s) + 4 H2O(g) Fe304(s) 4 H2(g) When 91.0 grams of Fe304(s) react with sufficient H2(g), 59.4 kJ of energy are absorbed What is the value of AH for the chemical equation given? kJ AHxn
Experiment 9-Post-lab Questions 1. Methanol (CH,OH) can be produced by the reaction of carbon monoxide (CO) with hydrogen (H,). The balanced chemical reaction is: cO@)+2 H, (g)CH,OH() Suppose 14.0 g of carbon monoxide is reacted with 8.0 g of hydrogen. a. Which reactant is the limiting reagent? b. What is the theoretical yield for methanol? c. At the completion of the reaction, how many grams of the excess reagent will remain? 2. Iron(III) oxide (Fe,O,) can be converted to iron...
are these right? im having a hard time on number 2 a-c Experiment 9-Post-lab Questions 1. Methanol (CH,OH) can be produced by the reaction o balanced chemical reaction is by the reaction of carbon monoxide (CO) with hydrogen (H). The CO(g) + 2 H (g)-CH2OH) Suppose 14.0 g of carbon monoxide is reacted with 8.0 g of hydrogen 3. Which reactant is the limiting reagent? Carbon monoxide (co) b. What is the theoretical yield for methanol? 16.02 g CH₂OH c....
In the thermite reaction, iron (III) oxide is reduced by aluminum to give molten iron, Fe2O3 (s) + 2 Al (s) --> 2 Fe (l) + Al2O3 (s) If you begin with 10.0 g of Fe2O3 and 20.0 g Al, Which reactant is limiting? What mass of Fe can be produced? What mass of the excess reactant remains after the limiting reactant is consumed? Set up an amounts table for this problem.
Name TA Laboratory Date - Section Experiment 9-Post-lab Questions 1. Methanol (CH,OH) can be produced by the reaction of carbon monoxide (CO) with hydrogen (H). The balanced chemical reaction is: CÓg) + 2 H (8) -CH,OH() Suppose 14.0 g of carbon monoxide is reacted with 8.0 g of hydrogen. a. Which reactant is the limiting reagent? b. What is the theoretical yield for methanol? c. At the completion of the reaction, how many grams of the excess reagent will remain?...