Given this balanced chemical reaction,
4 HCl(g) + O
(g)
→2 HO(l)
+ 2 Cl(g)
H
= -202.4 kJ (give answer in decimal notation, i.e. 234,000)
a. How many J (joules) of heat are released when 2.50 moles of HCl react with excess oxygen gas?
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Given this balanced chemical reaction, 4 HCl(g) + O(g) →2 HO(l) + 2 Cl(g) H = -202.4 kJ (give answer in decimal notati...
Fill in the Blanks Given this balanced chemical reaction, 4 HCl(g) + O2(g) +2H20(0) + 2...
Fill in the Blanks Given this balanced chemical reaction, 4 HCl(g) + O2(g) +2H20(0) + 2 C12(e) AH reaction=-202.4 kJ (give answer in decimal notation, i.e. 234,000) a. How many J (joules) of heat are released when 2.50 moles of HCl react with excess oxygen gas? b. How many moles of HCl are there in 89.3 g of HCl? c. How many kJ of heat are released when 89.3 g of HC react with excess O2? (Enter your answers as...
For the reaction 4 H(g) + CO(g) → CH(g) + 2 HO(g) H= -165 kJ a....
For the reaction 4 H(g) + CO(g) → CH(g) + 2 HO(g) H= -165 kJ a. Is the reaction endothermic or exothermic? b. How many kJ of heat are released when 5.0 moles of CO react with excess H? c. How many kJ of heat are liberated when 12.9 g of H react with excess CO? (Enter a number not words.)
A Reaction is given: ½Br2(l) --> Br(g) Ho = 112kJ/mol The bond enthalpy of Br-Br is 193 kJ/mol A. Formulate the vaporization process of 1 mol bromine Br2(l). B. Calculate the enthalpy of the vapori...
A Reaction is given: ½Br2(l) --> Br(g) Ho = 112kJ/mol The bond enthalpy of Br-Br is 193 kJ/mol A. Formulate the vaporization process of 1 mol bromine Br2(l). B. Calculate the enthalpy of the vaporization process bromine. Show calculations C. Calculate the energy invested \ emitted by the evaporation of 3.2 gr of bromine. Show calculations. (Explain how you determined whether the energy is invested or emitted in this process). D.A Reaction is given: ½H2(g) + ½Br2(l) --> HBr(g) Ho...
Given the balanced chemical equation, 2 H(g) → H2(g) ΔH0rxn = −436 kJ/mol Determine the mass...
Given the balanced chemical equation, 2 H(g) → H2(g) ΔH0rxn = −436 kJ/mol Determine the mass (in grams) of H(g) produced when 823 kJ of heat is released.
2. Write a balanced chemical reaction for the production of hydrogen gas from aluminum metal and...
2. Write a balanced chemical reaction for the production of hydrogen gas from aluminum metal and hydrochloric acid. a. What is the expected yield of hydrogen gas (in moles) if 0.06 g of aluminum metal were reacted with HCl in the experiment instead of magnesium? Assume that HCl is in excess. b. What is the expected yield of hydrogen gas (in mL) if the 0.06 g of aluminum metal were reacted with HCl in the experiment instead of magnesium?
4 H2(g) + CO2(g) → CH4(g) + 2 H20(g) AH=-165 kJ a. Is the reaction endothermic or exothermic? exothermic b. How man...
4 H2(g) + CO2(g) → CH4(g) + 2 H20(g) AH=-165 kJ a. Is the reaction endothermic or exothermic? exothermic b. How many kJ of heat are released when 5.0 moles of CO2 react with excess H2? 3300 number not words.) c. How many kJ of heat are liberated when 12.9 g of H2 react with excess CO2? 264 (Enter a number not words.) [] Full
Given the following electrolytic cell: The current is discharged into the electrolytic cell containing the solution CuS...
Given the following electrolytic cell:
The current is discharged into the electrolytic cell containing
the solution CuSO4(aq) 1.0M at 25 oC. During
the operation of the cell, copper Cu(s) is deposited on
one electrode and oxygen O2(g) gas is released, near the
second electrode.
O2(g) + 4H3O+(aq) +
4e-
6H2O(l) Eo= 1.23V
Cu2+(aq) + 2e- Cu(s)
Eo= 0.34V
A. The current in the cell is 1.5 amperes. The current is
streamed in 40 minutes.
i. Calculate the mass of copper...
1. 2. Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with...
1.
2.
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) + 4 HCl(aq) →MnCl(aq) + 2 H, 0(1) + Cl (g) How much MnO, (s) should be added to excess HCl(aq) to obtain 155 mL CI, (g) at 25°C and 785 Torr? mass of Mno: 1.097 Use the van der Waals equation of state to calculate the pressure of 4.00 mol of Co,...
Questions 15-17 utilize the following balanced chemical equation: 2 K2CrOdaq) + 3 SO2(g) + 4 HCl(aq)...
Questions 15-17 utilize the following balanced chemical equation: 2 K2CrOdaq) + 3 SO2(g) + 4 HCl(aq) → Cr2(SO4)3(s) + 4 KCl(aq) + 2 H2011) 15. Toxic chromate can be precipitated from an aqueous solution by bubbling SO2(g) through the solution How many moles of the gas are required to treat 3.00 x 10L of a solution that is 3.70 x 10 Min potassium chromate (KaCrO4) according to the above reaction? A. 2250 mol B. 1000 mol C. 1670 mol D....
1. Consider the reaction: MnO2 (s) + 4 HCl (g)MnCl2 (s) + Cl2 (g) + 2 H20 (g) If 10.00 g of MnO2 ...
1. Consider the reaction: MnO2 (s) + 4 HCl (g)MnCl2 (s) + Cl2 (g) + 2 H20 (g) If 10.00 g of MnO2 and 10.00 g of HCl are reacted, how many grams of MnCl2 can be produced? Show all calculations 2. Consider the following unbalanced equation: NH4NOs(aq) + Na PO4(aq)(NH4)3PO4(aq NaNOs(aq) Assuming you start with 50.0 g of NHNOs and 50.0 g of NasPO4, which is the limiting reagent? What is the theoretical yield (g) of ammonium phosphate? a....
Fill in the Blanks Given this balanced chemical reaction, 4 HCl(g) + O2(g) +2H20(0) + 2 C12(e) AH reaction=-202.4 kJ (give answer in decimal notation, i.e. 234,000) a. How many J (joules) of heat are released when 2.50 moles of HCl react with excess oxygen gas? b. How many moles of HCl are there in 89.3 g of HCl? c. How many kJ of heat are released when 89.3 g of HC react with excess O2? (Enter your answers as...
2. Write a balanced chemical reaction for the production of hydrogen gas from aluminum metal and hydrochloric acid. a. What is the expected yield of hydrogen gas (in moles) if 0.06 g of aluminum metal were reacted with HCl in the experiment instead of magnesium? Assume that HCl is in excess. b. What is the expected yield of hydrogen gas (in mL) if the 0.06 g of aluminum metal were reacted with HCl in the experiment instead of magnesium?
4 H2(g) + CO2(g) → CH4(g) + 2 H20(g) AH=-165 kJ a. Is the reaction endothermic or exothermic? exothermic b. How many kJ of heat are released when 5.0 moles of CO2 react with excess H2? 3300 number not words.) c. How many kJ of heat are liberated when 12.9 g of H2 react with excess CO2? 264 (Enter a number not words.) [] Full
Given the following electrolytic cell:
The current is discharged into the electrolytic cell containing
the solution CuSO4(aq) 1.0M at 25 oC. During
the operation of the cell, copper Cu(s) is deposited on
one electrode and oxygen O2(g) gas is released, near the
second electrode.
O2(g) + 4H3O+(aq) +
4e-
6H2O(l) Eo= 1.23V
Cu2+(aq) + 2e- Cu(s)
Eo= 0.34V
A. The current in the cell is 1.5 amperes. The current is
streamed in 40 minutes.
i. Calculate the mass of copper...
1.
2.
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) + 4 HCl(aq) →MnCl(aq) + 2 H, 0(1) + Cl (g) How much MnO, (s) should be added to excess HCl(aq) to obtain 155 mL CI, (g) at 25°C and 785 Torr? mass of Mno: 1.097 Use the van der Waals equation of state to calculate the pressure of 4.00 mol of Co,...
Questions 15-17 utilize the following balanced chemical equation: 2 K2CrOdaq) + 3 SO2(g) + 4 HCl(aq) → Cr2(SO4)3(s) + 4 KCl(aq) + 2 H2011) 15. Toxic chromate can be precipitated from an aqueous solution by bubbling SO2(g) through the solution How many moles of the gas are required to treat 3.00 x 10L of a solution that is 3.70 x 10 Min potassium chromate (KaCrO4) according to the above reaction? A. 2250 mol B. 1000 mol C. 1670 mol D....
1. Consider the reaction: MnO2 (s) + 4 HCl (g)MnCl2 (s) + Cl2 (g) + 2 H20 (g) If 10.00 g of MnO2 and 10.00 g of HCl are reacted, how many grams of MnCl2 can be produced? Show all calculations 2. Consider the following unbalanced equation: NH4NOs(aq) + Na PO4(aq)(NH4)3PO4(aq NaNOs(aq) Assuming you start with 50.0 g of NHNOs and 50.0 g of NasPO4, which is the limiting reagent? What is the theoretical yield (g) of ammonium phosphate? a....
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