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3. (10 pts) Jessica wants to find the oxidation states of carbon in...
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.
question 5, 6 5. (10 pts) Helena compares oxidation with reduction. Match each term with the...
question 5, 6
5. (10 pts) Helena compares oxidation with reduction. Match each term with the correct definition a) Oxidation • Gain of oxygen • Gain of hydrogen b) Reduction • Loss of electron • Decrease in oxidation number • Gain of electron 6. Jasmine finds that the carbohydrate is one of the major sources of energy of our body. The combustion of the carbohydrate glucose produces carbon dioxide and water: C6H12O6 + O2 CO2 + H2O (unbalanced) a) (2...
Question 8 10 pts Methane gas reacts with water vapor to produce a mixture of carbon...
Question 8 10 pts Methane gas reacts with water vapor to produce a mixture of carbon monoxide and hydrogen, according to the balanced equation below. CH4(8) + H2O(g) → CO(g) + 3H2(8) AH® for the reaction is +206.1 kJ/mol, while ASⓇ is +215 J/Komol. At what temperature (in °C) does this reaction become spontaneous?
2. Determine the mole ratio for the following reaction: oxygen gas and carbon react to form...
2. Determine the mole ratio for the following reaction: oxygen gas and carbon react to form carbon monoxide, CO. 3. Determine the number of moles of sodium hydroxide, NaOH, produced when 2 mol of sodium and 3 mol of water react to form sodium hydroxide and hydrogen gas, H2. 4. Calculate the mass of carbon monoxide, CO, that was needed to produce 78 g of methanol, CH2OH, by the following reaction: 2H2 + CO → CH3OH. 5. Demonstrate that the...
1) One hundred (100) ml of a 1.00 M solution of HCl is diluted with water...
1) One hundred (100) ml of a 1.00 M solution of HCl is diluted with water to prepare a 0.200 M solution. What is the volume of the resulting 0.200 M solution? Or asked another way, to what volume must the original solution be diluted? (3 points) 2) Lithium hydroxide, LiOH, is used in spacecraft to absorb the carbon dioxide exhaled by astronauts. Given 1.3 kg of LiOH, how many kg of CO2 can be absorbed? (10 Pts. The reaction...
answer questions 1,2,3 DQuestion 1 2 pts Pentacarbonyliron (Fe(CO)s) reacts with phosophorous triflouride (PF3) and...
answer questions 1,2,3
DQuestion 1 2 pts Pentacarbonyliron (Fe(CO)s) reacts with phosophorous triflouride (PF3) and hydrogen, releasing carbon monoxide according to the reaction below. If you combine 11.6 moles of Fe(CO)s. 81.6 moles of PF3, and 90 moles of H2, how many moles of Fe(CO)2(PF3)2(H2)2 are formed? Fe(CO)5 (s) + 2 PF3 (s) + 2 H2 (g)--Fe(CO)2(PF3)2(H2)2 (s) + 3 CO (g) uestion2 2 pts What is the percent yield of the following reaction if 23.4 grams of NH3 are...
5. Determine the oxidation states of the elements in the compounds listed. None of the oxygen-containing...
5. Determine the oxidation states of the elements in the compounds listed. None of the oxygen-containing compounds are peroxides or superoxides. (A) H,PO (В) AI(ОH), (C) SeO2 6. Complete and balance the following acid-base equations: (A) A solution of HCIO, is added to a solution of LiOH. (B) Aqueous H2SO4 reacts with NaOH 7. Write the molecular, total ionic, and net ionic equations for the following reactions: (А) Са(ОН), (аq) + НС-Н,О,(aq) — (B) H,PO,(aq) CaCl,(aq) - 8. Write the...
6. 48.6 mL of a 0.100 M NaOH solution is needed to react with 20.0 mL...
6. 48.6 mL of a 0.100 M NaOH solution is needed to react with 20.0 mL of an unknown concentration of HCl solution. What is the concentration of the HCl solution? 7. A colorless liquid has a composition of 84.1% carbon and 15.9% hydrogen by mass. Determine the empirical formula. Also, assuming the molar mass of this compound is 114.2 g/mol, determine the molecular formula of this compound. 8. What is the concentration of HCl in the final solution when...
QUESTION 2 When 56.68 g of magnesium metal reacts with excess HCl(aq) to form hydrogen gas...
QUESTION 2 When 56.68 g of magnesium metal reacts with excess HCl(aq) to form hydrogen gas and magnesium chloride, how many liters of H2 gas are produced at STP? (Hint: start by writing a balanced chemical reaction.) QUESTION 3 Methane (CH4) burns in air to form carbon dioxide and water as shown below. CH4(g)2 O2(g)CO2(g)2 H20(0) If a sample of methane occupies 344. mL at 1.37 atm, what volume (in mL) of oxygen gas at the same temperature and pressure...
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...
question 5, 6
5. (10 pts) Helena compares oxidation with reduction. Match each term with the correct definition a) Oxidation • Gain of oxygen • Gain of hydrogen b) Reduction • Loss of electron • Decrease in oxidation number • Gain of electron 6. Jasmine finds that the carbohydrate is one of the major sources of energy of our body. The combustion of the carbohydrate glucose produces carbon dioxide and water: C6H12O6 + O2 CO2 + H2O (unbalanced) a) (2...
Question 8 10 pts Methane gas reacts with water vapor to produce a mixture of carbon monoxide and hydrogen, according to the balanced equation below. CH4(8) + H2O(g) → CO(g) + 3H2(8) AH® for the reaction is +206.1 kJ/mol, while ASⓇ is +215 J/Komol. At what temperature (in °C) does this reaction become spontaneous?
2. Determine the mole ratio for the following reaction: oxygen gas and carbon react to form carbon monoxide, CO. 3. Determine the number of moles of sodium hydroxide, NaOH, produced when 2 mol of sodium and 3 mol of water react to form sodium hydroxide and hydrogen gas, H2. 4. Calculate the mass of carbon monoxide, CO, that was needed to produce 78 g of methanol, CH2OH, by the following reaction: 2H2 + CO → CH3OH. 5. Demonstrate that the...
1) One hundred (100) ml of a 1.00 M solution of HCl is diluted with water to prepare a 0.200 M solution. What is the volume of the resulting 0.200 M solution? Or asked another way, to what volume must the original solution be diluted? (3 points) 2) Lithium hydroxide, LiOH, is used in spacecraft to absorb the carbon dioxide exhaled by astronauts. Given 1.3 kg of LiOH, how many kg of CO2 can be absorbed? (10 Pts. The reaction...
answer questions 1,2,3
DQuestion 1 2 pts Pentacarbonyliron (Fe(CO)s) reacts with phosophorous triflouride (PF3) and hydrogen, releasing carbon monoxide according to the reaction below. If you combine 11.6 moles of Fe(CO)s. 81.6 moles of PF3, and 90 moles of H2, how many moles of Fe(CO)2(PF3)2(H2)2 are formed? Fe(CO)5 (s) + 2 PF3 (s) + 2 H2 (g)--Fe(CO)2(PF3)2(H2)2 (s) + 3 CO (g) uestion2 2 pts What is the percent yield of the following reaction if 23.4 grams of NH3 are...
5. Determine the oxidation states of the elements in the compounds listed. None of the oxygen-containing compounds are peroxides or superoxides. (A) H,PO (В) AI(ОH), (C) SeO2 6. Complete and balance the following acid-base equations: (A) A solution of HCIO, is added to a solution of LiOH. (B) Aqueous H2SO4 reacts with NaOH 7. Write the molecular, total ionic, and net ionic equations for the following reactions: (А) Са(ОН), (аq) + НС-Н,О,(aq) — (B) H,PO,(aq) CaCl,(aq) - 8. Write the...
6. 48.6 mL of a 0.100 M NaOH solution is needed to react with 20.0 mL of an unknown concentration of HCl solution. What is the concentration of the HCl solution? 7. A colorless liquid has a composition of 84.1% carbon and 15.9% hydrogen by mass. Determine the empirical formula. Also, assuming the molar mass of this compound is 114.2 g/mol, determine the molecular formula of this compound. 8. What is the concentration of HCl in the final solution when...
QUESTION 2 When 56.68 g of magnesium metal reacts with excess HCl(aq) to form hydrogen gas and magnesium chloride, how many liters of H2 gas are produced at STP? (Hint: start by writing a balanced chemical reaction.) QUESTION 3 Methane (CH4) burns in air to form carbon dioxide and water as shown below. CH4(g)2 O2(g)CO2(g)2 H20(0) If a sample of methane occupies 344. mL at 1.37 atm, what volume (in mL) of oxygen gas at the same temperature and pressure...
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...
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