Homework Answers
Given
2H2(g) + O2 (g)= 2 H2O(g)
According to the above balanced equation
2 moles of H2 reacts with excess of O2 to form 2 moles of H2O
Therefore 0.623 moles of H2 with excess of O2 will form = 2/2 X 0.623 moles of H2O
= 0.623 moles of H2O
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want to verify my answer because i am not sure. i got
13.70932267
2 H2...
Under certain circumstances, carbon dioxide, CO2(g), can be made to react with hydrogen gas, H2(g), to produce methane,...
Under certain circumstances, carbon dioxide, CO2(g), can be made to react with hydrogen gas, H2(g), to produce methane, CH4(g), and water vapor, H2O(g): CO2(g)+4H2(g)→CH4(g)+2H2O(g) How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 53.6 moles of water vapor? Express your answer with the appropriate units. For example, write the unit moles as mol.
O STOICHIOMETRY Solving moles-to-moles limiting reactant problems Hydrogen (H2) gas and oxygen (O2) gas react to...
O STOICHIOMETRY Solving moles-to-moles limiting reactant problems Hydrogen (H2) gas and oxygen (O2) gas react to form water (H,) vapor. Suppose you have 5.0 mol of H, and 13.0 mol of O, in a reactor Suppose as much as possible of the H, reacts. How much will be left? Round your answer to the nearest 0.1 mol. mol x ?
O STOICHIOMETRY Solving moles-to-moles limiting reactant problems - Hydrogen (H2) gas and oxygen (O2) gas react...
O STOICHIOMETRY Solving moles-to-moles limiting reactant problems - Hydrogen (H2) gas and oxygen (O2) gas react to form water (H20) vapor. Suppose you have 3.0 mol of H, and 7.0 mol of o, in a reactor. Calculate the largest amount of H,O that could be produced. Round your answer to the nearest 0.1 mol. Il mol x 5 ?
please answer both. I just need these two last questions and there due at midnight. Oxygen gas can be prepared by h...
please answer both. I just need these two last questions and
there due at midnight.
Oxygen gas can be prepared by heating potassium chlorate according to the following equation 2KCIO3(s) *2KCI(s) + 302(g) The product gas, O2, is collected over water at a temperature of 25 °C and a pressure of 747 mm Hg. If the wet O2 gas formed occupies a volume of 6.91 L, the number of grams of O, formed is g. The vapor pressure of water...
Model 4: Using Moles of Limiting Reagent in Stoichiometry The above pictures are not realistic because...
Model 4: Using Moles of Limiting Reagent in Stoichiometry The above pictures are not realistic because they involve so very few molecules. In a "real-world" sample, you are likely to have on the order of 10 molecules. Consider the following: Suppose you have a reaction vessel initially containing 13.5 moles of sulfur dioxide and 11.2 moles of oxygen mol SO, required to react with all O2 = 11.2 mol O2 x 2 mol SO 22.4 mol SO, 1 mol O2...
Hydrogen and oxygen react to form water vapor as seen in the unbalanced equation below. In...
Hydrogen and oxygen react to form water vapor as seen in the unbalanced equation below. In a 475 ml container at 533C, hydrogen has a pressure of 0.998 atm. Inside that vessel, oxygen is contained in a small tube with a volume of 25.0 ml, same temperature, and a pressure of 2.75 atm. The small vessel of oxygen is shattered and allowed to react according to the equation H2(g) + O2(g) - HO(g) What is the limiting reactant? What is...
Hydrogen gas, H2, and oxygen gas, O2, can be reacted to form liquid water. If 2.00...
Hydrogen gas, H2, and oxygen gas, O2, can be reacted to form liquid water. If 2.00 g hydrogen gas and 17.20 g oxygen gas are reacted in a 1.500 L flask at 25.0 °C, calculate the total gas pressure (atm) in the flask at 25 °C. The vapor pressure of water is 23.8 mm Hg. Stoichiometry is involved in this question. Total gas pressure:
This is from the chapter “thermochemistry” from CHEM 100. Question 2 (0.5 marks) Hydrogen gas, H2,...
This is from the chapter “thermochemistry” from CHEM
100.
Question 2 (0.5 marks) Hydrogen gas, H2, and oxygen gas, O2, can be reacted to form liquid water. If 2.00 Rhydrogen gas and 17.20 g oxygen gas are reacted in a 1.500 L flask at 25.0°C, calculate the total gas pressure (atm) in the flask at 25 °C. The vapor pressure of water is 23.8 mm Hg. Stoichiometry is involved in this question. Total gas pressure:
Which of the following statements is false concerning the reaction of hydrogen gas and oxygen gas given below? H2(g)+1...
Which of the following statements is false concerning the reaction
of hydrogen gas and oxygen gas given below?
H2(g)+1/2O2(g)>H2O
Which of the following statements is false concerning the reaction of hydrogen gas and oxygen gas given below? H2(g) +029) - H20(1; AH = -285.8 kJ Select one: a. For the reaction H2(g) + O2(g) - H2O(g), AH is not equal to -285 b. If the equation is reversed, AH becomes +285.8 kJ. If the equation is multiplied by 2, AH...
5. Hydrogen gas reacts with oxygen to form water. 2 H2(g) + O2(g) → 2 H2O(g),...
5. Hydrogen gas reacts with oxygen to form water. 2 H2(g) + O2(g) → 2 H2O(g), AH=-483.5kJ Determine the mass of oxygen and hydrogen needed to produce 483 J of heat without leaving any reactant. [0.5] 6. Use standard enthalpies of formation from Appendix II.B from at the end of the textbook to determine AHºrxn for the combustion reaction of hexane (C6H14). [0.5]
O STOICHIOMETRY Solving moles-to-moles limiting reactant problems Hydrogen (H2) gas and oxygen (O2) gas react to form water (H,) vapor. Suppose you have 5.0 mol of H, and 13.0 mol of O, in a reactor Suppose as much as possible of the H, reacts. How much will be left? Round your answer to the nearest 0.1 mol. mol x ?
O STOICHIOMETRY Solving moles-to-moles limiting reactant problems - Hydrogen (H2) gas and oxygen (O2) gas react to form water (H20) vapor. Suppose you have 3.0 mol of H, and 7.0 mol of o, in a reactor. Calculate the largest amount of H,O that could be produced. Round your answer to the nearest 0.1 mol. Il mol x 5 ?
please answer both. I just need these two last questions and
there due at midnight.
Oxygen gas can be prepared by heating potassium chlorate according to the following equation 2KCIO3(s) *2KCI(s) + 302(g) The product gas, O2, is collected over water at a temperature of 25 °C and a pressure of 747 mm Hg. If the wet O2 gas formed occupies a volume of 6.91 L, the number of grams of O, formed is g. The vapor pressure of water...
Model 4: Using Moles of Limiting Reagent in Stoichiometry The above pictures are not realistic because they involve so very few molecules. In a "real-world" sample, you are likely to have on the order of 10 molecules. Consider the following: Suppose you have a reaction vessel initially containing 13.5 moles of sulfur dioxide and 11.2 moles of oxygen mol SO, required to react with all O2 = 11.2 mol O2 x 2 mol SO 22.4 mol SO, 1 mol O2...
Hydrogen and oxygen react to form water vapor as seen in the unbalanced equation below. In a 475 ml container at 533C, hydrogen has a pressure of 0.998 atm. Inside that vessel, oxygen is contained in a small tube with a volume of 25.0 ml, same temperature, and a pressure of 2.75 atm. The small vessel of oxygen is shattered and allowed to react according to the equation H2(g) + O2(g) - HO(g) What is the limiting reactant? What is...
Hydrogen gas, H2, and oxygen gas, O2, can be reacted to form liquid water. If 2.00 g hydrogen gas and 17.20 g oxygen gas are reacted in a 1.500 L flask at 25.0 °C, calculate the total gas pressure (atm) in the flask at 25 °C. The vapor pressure of water is 23.8 mm Hg. Stoichiometry is involved in this question. Total gas pressure:
This is from the chapter “thermochemistry” from CHEM
100.
Question 2 (0.5 marks) Hydrogen gas, H2, and oxygen gas, O2, can be reacted to form liquid water. If 2.00 Rhydrogen gas and 17.20 g oxygen gas are reacted in a 1.500 L flask at 25.0°C, calculate the total gas pressure (atm) in the flask at 25 °C. The vapor pressure of water is 23.8 mm Hg. Stoichiometry is involved in this question. Total gas pressure:
Which of the following statements is false concerning the reaction
of hydrogen gas and oxygen gas given below?
H2(g)+1/2O2(g)>H2O
Which of the following statements is false concerning the reaction of hydrogen gas and oxygen gas given below? H2(g) +029) - H20(1; AH = -285.8 kJ Select one: a. For the reaction H2(g) + O2(g) - H2O(g), AH is not equal to -285 b. If the equation is reversed, AH becomes +285.8 kJ. If the equation is multiplied by 2, AH...
5. Hydrogen gas reacts with oxygen to form water. 2 H2(g) + O2(g) → 2 H2O(g), AH=-483.5kJ Determine the mass of oxygen and hydrogen needed to produce 483 J of heat without leaving any reactant. [0.5] 6. Use standard enthalpies of formation from Appendix II.B from at the end of the textbook to determine AHºrxn for the combustion reaction of hexane (C6H14). [0.5]
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