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81 solutions

Gas Stoichiometry

Q. 24) The volume of HCl gas required to react with excess magnesium metal to produce 6.82 L of hydrogen gas at 2.19 atm and 35.0 ° C is L. A) 2.19 B) 4.38 C) 6.82 D) 13.6 E) 3.41

Solved • Mar 29, 2020

Gas Stoichiometry

Q. How many grams of NH3 form when 25.1 L of H2(g) (measured at STP) reacts with N2 to form NH3 according to this reaction? N2(g)+3H2(g)→2NH3 (g)

Solved • Mar 29, 2020

Gas Stoichiometry

Q. How many liters of H2 gas, measured at 741 mmHg and 83 ∘C, are required to synthesize 0.75 of mol of CH3OH? How many liters of CO gas, measured under the same conditions, are required? CH3OH can be synthesized by the reaction: CO(g)+2H2(g)→CH3OH(g)

Solved • Mar 29, 2020

Gas Stoichiometry

Q. How many liters of hydrogen gas are formed from the complete reaction of 1.17 mol of C? Assume that the hydrogen gas is collected at a pressure of 1.0 atm and temperature of 317K. Consider the chemical reaction: C(s)+H2O(g)→CO(g)+H2(g)

Solved • Mar 29, 2020

Gas Stoichiometry

Q. The reaction of iron with hydrochloric acid is represented by the following thermochemical equation.Fe(s) + 2HCl(aq) → FeCl2(aq) + H2(g); ΔH° = –87.9 kJIf, in a particular experiment, 1.56 kJ of heat was released at constant pressure, what volume of H2(g), measured at STP, was produced? (R = 0.0821 L • atm/(K • mol))

Solved • Mar 21, 2020

Gas Stoichiometry

Q. Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as described by the chemical equation MnO2(s) + 4HCl(aq) → MnCl2(aq) + 2H2O(l) + Cl2(g) How much MnO2(s) should be added to excess HCl(aq) to obtain 235 mL Cl2(g) at 25 °C and 785 Torr?

Solved • Mar 13, 2020

Gas Stoichiometry

Q. Calcium carbide,CaC2, reacts with water to produce acetylene gas(ethane), C2H2, and solid calcium hydroxide. The ethane gas is collected over water at a temperature of 32C and a barometric pressure of 106.5kpa. What volume of acetylene, in ml, would be produced from 2,49 g of calcium carbide? What volume would this gas occupy at STP?

Solved • Mar 9, 2020