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Calculate the work done (in kilojoules) when a 2.00 L hydrogen balloon explodes when it reacts...
11 point) Calculate the work done (in kilojoules) when a 2.00 L hydrogen balloon explodes when...
11 point) Calculate the work done (in kilojoules) when a 2.00 L hydrogen balloon explodes when it reacts with excess oxygen in the air at 1.04 atm of pressure. Assume a complete reaction occurs. 2 H2(g) + O2(g) --> 2 H2O(g) 1.04 kJ 2.08 kJ 0.105 kJ 105 kJ
Calculate the work done (in kilojoules) when a 2.00 L hydrogen balloon explode when it reacts...
Calculate the work done (in kilojoules) when a 2.00 L hydrogen balloon explode when it reacts with excess oxygen in the air at 1.04 atm of pressure. Assume a complete reaction occurs. 2 H2(g) + O2(g) + O2(g) --> 2 H2O(g) 01.04 kJ 2.08 kJ 0.105 kJ 105 kJ
The reaction between hydrogen and oxygen to yield water vapor has ΔH∘=−484kJ: 2H2(g)+O2(g)→2H2O(g)ΔH∘=−484kJ A) How much PV work is done in kilojoules for the reaction of 0.36 mol of H2 with 0.18 mol...
The reaction between hydrogen and oxygen to yield water vapor has ΔH∘=−484kJ: 2H2(g)+O2(g)→2H2O(g)ΔH∘=−484kJ A) How much PV work is done in kilojoules for the reaction of 0.36 mol of H2 with 0.18 mol of O2 at atmospheric pressure if the volume change is -3.8 L ? B) What is the value of ΔE in kilojoules.
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...
Calculate the work (in kJ) done on the system when 2.80 moles of hydrogen gas are produced from t...
Calculate the work (in kJ) done on the system when 2.80 moles of hydrogen gas are produced from the reaction of sodium in excess water at 298 K: 2Na(s) 2H2O()2NaOH(aq) + H2(g) Answer: 2.62 Calculate the work (in kJ) when 1.40 moles of methane react with excess oxygen at 463 K: CH4(g) 202(g) CO2(g) 2H20 (1) Answer: 13.1 1.927 g of an unknown hydrocarbon (129.1 g/mol) burns in bomb calorimeter in excess oxygen. The heat capacity of the calorimeter,Cv, =...
When 56.8 g of lead reacts with 3.50 L of oxygen gas, measured at 1.00 atm...
When 56.8 g of lead reacts with 3.50 L of oxygen gas, measured
at 1.00 atm and 25.0 0 degrees * C , 60.1 kl of heat is released at
constant pressure. What is AH for this reaction? (R = 0.0821L * atm
/ (Kmol)) 2Pb(s)+O 2 (g) 2PbO(s) )
When 56.8 g of lead reacts with 3.50 L of oxygen gas, measured at 1.00 atm and 25.0°C. 60.1 kJ of heat is released at constant pressure. What is AH°...
Consider that you have a balloon containing 2.00 moles of CO and 1.00 mole of O2...
Consider that you have a balloon containing 2.00 moles of CO and 1.00 mole of O2 which is in a room that has a temperature of 28oC and a pressure of 1.00 atm. Then, the following reaction occurs inside the balloon to completion: 2 CO(g) + O2(g) -> 2 CO2(g). Calculate the change in work due to the reaction occurring inside the balloon. Enter your answer to three significant figures and in units of kJ.
Question 43 of 52 Solid sodium reacts with liquid water to form hydrogen gas according to...
Question 43 of 52 Solid sodium reacts with liquid water to form hydrogen gas according to the equation 2 Na(s) + 2 H2O(l) - 2 NaOH(aq) + H2(g) What is the pressure (in atm) of hydrogen gas in the 20.0L headspace of a reactor vessel when 3.22 kg sodium is reacted with excess water at 50.0°C?
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:
need help with 1. A weather balloon with a volume of 200.0 L is filled with...
need help with
1. A weather balloon with a volume of 200.0 L is filled with air and launched at 20°C at sea level, where the atmospheric pressure is 1.00 atm. What is the volume of the balloon where the atmospheric pressure is 63 mmHg and the temperature is 220K? (5 pts) Hint: you need to find the number of moles of air first. 2. Use the following enthalpies of formation to calculate an approximate enthalpy of reaction, AHrxn for:...
11 point) Calculate the work done (in kilojoules) when a 2.00 L hydrogen balloon explodes when it reacts with excess oxygen in the air at 1.04 atm of pressure. Assume a complete reaction occurs. 2 H2(g) + O2(g) --> 2 H2O(g) 1.04 kJ 2.08 kJ 0.105 kJ 105 kJ
Calculate the work done (in kilojoules) when a 2.00 L hydrogen balloon explode when it reacts with excess oxygen in the air at 1.04 atm of pressure. Assume a complete reaction occurs. 2 H2(g) + O2(g) + O2(g) --> 2 H2O(g) 01.04 kJ 2.08 kJ 0.105 kJ 105 kJ
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...
Calculate the work (in kJ) done on the system when 2.80 moles of hydrogen gas are produced from the reaction of sodium in excess water at 298 K: 2Na(s) 2H2O()2NaOH(aq) + H2(g) Answer: 2.62 Calculate the work (in kJ) when 1.40 moles of methane react with excess oxygen at 463 K: CH4(g) 202(g) CO2(g) 2H20 (1) Answer: 13.1 1.927 g of an unknown hydrocarbon (129.1 g/mol) burns in bomb calorimeter in excess oxygen. The heat capacity of the calorimeter,Cv, =...
When 56.8 g of lead reacts with 3.50 L of oxygen gas, measured
at 1.00 atm and 25.0 0 degrees * C , 60.1 kl of heat is released at
constant pressure. What is AH for this reaction? (R = 0.0821L * atm
/ (Kmol)) 2Pb(s)+O 2 (g) 2PbO(s) )
When 56.8 g of lead reacts with 3.50 L of oxygen gas, measured at 1.00 atm and 25.0°C. 60.1 kJ of heat is released at constant pressure. What is AH°...
Question 43 of 52 Solid sodium reacts with liquid water to form hydrogen gas according to the equation 2 Na(s) + 2 H2O(l) - 2 NaOH(aq) + H2(g) What is the pressure (in atm) of hydrogen gas in the 20.0L headspace of a reactor vessel when 3.22 kg sodium is reacted with excess water at 50.0°C?
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:
need help with
1. A weather balloon with a volume of 200.0 L is filled with air and launched at 20°C at sea level, where the atmospheric pressure is 1.00 atm. What is the volume of the balloon where the atmospheric pressure is 63 mmHg and the temperature is 220K? (5 pts) Hint: you need to find the number of moles of air first. 2. Use the following enthalpies of formation to calculate an approximate enthalpy of reaction, AHrxn for:...
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