a) How much heat (in kJ) is evolved when 111.15 g of water cools and freezes...
a) How much heat (in kJ) is evolved when 111.15 g of water cools and freezes from 78.81oC to 0oC?
b) Nitrogen and oxygen react to form nitric oxide (NO). All substances are in the gas phase. If 0.463 atm of nitrogen and 0.417 atm of oxygen react, what is the partial pressure of nitric oxide (in mmHg) when this reaction goes 81.3 complete. The temperature and volume are constant.
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a) How much heat (in kJ) is evolved when 111.15 g of water cools
and freezes...
51. How much heat (in kJ) is evolved (under standard conditions) when 103.23 g of copper...
51. How much heat (in kJ) is evolved (under standard conditions) when 103.23 g of copper reacts to form copper(II) oxide?
Nitric oxide is formed in automobile exhaust when nitrogen and oxygen in air react at high temperatures. 29. N2(g)+O...
Nitric oxide is formed in automobile exhaust when nitrogen and oxygen in air react at high temperatures. 29. N2(g)+O:(g) 2NO(g) The equilibrium constant Kp for the reaction is 0.0025 at 2127 C. If a container is charged with 8.00 atm of nitrogen and 5.00 atm of oxygen and the mixture is allowed to reach equilibrium, what will be the equilibrium partial pressure of nitrogen?
Nitric oxide is formed in automobile exhaust when nitrogen and oxygen in air react at high...
Nitric oxide is formed in automobile exhaust when nitrogen and oxygen in air react at high temperatures. N2(g) + O2(g) ⇌ 2NO(g) The equilibrium constant Kp for the reaction is 0.31 at 1200 °C. If a container is charged with 0.344 atm of nitrogen and 0.454 atm of oxygen and the mixture is allowed to reach equilibrium, what will be the equilibrium partial pressure of nitric oxide? Report your answer to three significant figures
Please show all work and correct answer. Thanks! When one mole I. Nitrogen oxide (NO) reacts...
Please show all work and correct answer. Thanks!
When one mole I. Nitrogen oxide (NO) reacts with oxygen to give a brown gas, NO2. of NO reacts with oxygen, 57.0 kJ of heat are evolved. What is AH when 5.00 grams of nitrogen oxide react?
1. How much heat energy, in joules, is required to raise the temperature of 25.00 g...
1. How much heat energy, in joules, is required to raise the temperature of 25.00 g of ice cube at 0.00 C to 50.00°C? a. 25.35 kJ b. 1330.0 J c. 1555.0J d. 13.57 kJ e. 12.32 kJ 2. Estimate the vapor pressure of water at 65°C. (Hint: You know the vapor pressure at the boiling point of water.) a. 320 mmHg b. 195 mmHg c. 115 mmHg d. 550 mmHg e. 439 mmHg 3. Which of the following substances...
Aluminum oxide can be formed from its elements. 4Al(s) + 3O2(g) → 2Al2O3(s) What volume of...
Aluminum oxide can be formed from its elements. 4Al(s) + 3O2(g) → 2Al2O3(s) What volume of oxygen is needed at 28.8 ∘C and 0.9450 atm to completely react with 50.66 g of aluminum? If 35.0 g of fluorine gas has a temperature of -20.3 ∘C and a pressure of 556 mmHg , what is its volume? An airplane is pressurized to 650.0 mmHg , which is the atmospheric pressure at a ski resort at 1.30×104 ft altitude. If air is 21.0...
consider the following reaction 2H2(g)+O2(g)--> 2H2O (I) delta H= -572KJ A) how much heat is evolved...
consider the following reaction 2H2(g)+O2(g)--> 2H2O (I) delta H= -572KJ A) how much heat is evolved when 1.00 mole of H2O (I) is produced? B) how much heat is evolved when 4.03g H2 are reacted with 40.0g of O2? C) the total volume of hydrogen gas needed to fill the Hindenburg was 2.0*10^8 L at 1.0 atm and 25 degree C. How much HEAT was evolved when the Hidenburg exploded, assuming all of the hydrogen reacted (plenty of oxygen)?
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How many liters of CO2 gas are liberated at 25oC and 1.233 atm when 2.61 X1015 kJ heat is evolved in the burning of Decane. DH = -13556kJ for the balanced reaction (whole number coefficients) of the burning of decane in oxygen.
Please answer the whole page. Ideal Gas Law PV = nRT Gas Laws Formulas Combined Gas Law (P1)(V1) Ti (P2)(V2) Tz = Dalto...
Please answer the whole page.
Ideal Gas Law PV = nRT Gas Laws Formulas Combined Gas Law (P1)(V1) Ti (P2)(V2) Tz = Dalton's Law of Partial Pressures P = P, +P+P, + ...etc. K="C + 273 3. A 5.0 L sample of gas has a pressure of 1200 torr. What is the new pressure if the temperature is changed from 220 K to 440 K and the volume increased to 20.0 L ? 4. A 10.0 mL sample of gas...
If 25.0 kJ of heat energy is added to 50.0 g of water initially at 25°C,...
If 25.0 kJ of heat energy is added to 50.0 g of water initially at 25°C, what will be the final temperature of the water? The specific heat of water is 4.18 Jg'°C 0. Calculate the density of hydrogen sulfide gas, H,S, at 30.0°C and 1.20 atm. 21. A gaseous mixture made from 4.25 g of oxygen and 5.68 g of ethylene (CHA) is placed 25.0 L container at 25°C. a. What is the partial pressure of each gas? b....
Nitric oxide is formed in automobile exhaust when nitrogen and oxygen in air react at high temperatures. 29. N2(g)+O:(g) 2NO(g) The equilibrium constant Kp for the reaction is 0.0025 at 2127 C. If a container is charged with 8.00 atm of nitrogen and 5.00 atm of oxygen and the mixture is allowed to reach equilibrium, what will be the equilibrium partial pressure of nitrogen?
Please show all work and correct answer. Thanks!
When one mole I. Nitrogen oxide (NO) reacts with oxygen to give a brown gas, NO2. of NO reacts with oxygen, 57.0 kJ of heat are evolved. What is AH when 5.00 grams of nitrogen oxide react?
1. How much heat energy, in joules, is required to raise the temperature of 25.00 g of ice cube at 0.00 C to 50.00°C? a. 25.35 kJ b. 1330.0 J c. 1555.0J d. 13.57 kJ e. 12.32 kJ 2. Estimate the vapor pressure of water at 65°C. (Hint: You know the vapor pressure at the boiling point of water.) a. 320 mmHg b. 195 mmHg c. 115 mmHg d. 550 mmHg e. 439 mmHg 3. Which of the following substances...
Please answer the whole page.
Ideal Gas Law PV = nRT Gas Laws Formulas Combined Gas Law (P1)(V1) Ti (P2)(V2) Tz = Dalton's Law of Partial Pressures P = P, +P+P, + ...etc. K="C + 273 3. A 5.0 L sample of gas has a pressure of 1200 torr. What is the new pressure if the temperature is changed from 220 K to 440 K and the volume increased to 20.0 L ? 4. A 10.0 mL sample of gas...
If 25.0 kJ of heat energy is added to 50.0 g of water initially at 25°C, what will be the final temperature of the water? The specific heat of water is 4.18 Jg'°C 0. Calculate the density of hydrogen sulfide gas, H,S, at 30.0°C and 1.20 atm. 21. A gaseous mixture made from 4.25 g of oxygen and 5.68 g of ethylene (CHA) is placed 25.0 L container at 25°C. a. What is the partial pressure of each gas? b....
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