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Ch.5 - Gases

Chapter 5, Problem 74

Oxygen gas reacts with powdered aluminum according to the reaction: 4 Al(s) + 3 O2( g)¡2 Al2O3(s) What volume of O2 gas (in L), measured at 782 mmHg and 25 °C, completely reacts with 53.2 g Al?

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Hey everyone. So you have chlorine from floor to floor methane ozone, we have a series of reactions below. and at 32 mm of Mercury, 288 Kelvin. We assume that all the chlorine from 16.5 g of methane undergoes 15 cycles. Or as calculate the total volume of ozone that is consumed in ozone is 03. There for one cycle we need to convert from grams of chlorophyll and methane thomas of ozone Start giving 16.5 g of course truffle or methane. And in one mole of course our floor methane of the Mueller mass Which is 12.011 plus three, 18. plus 35 .453 Mr. give us 104 0.46 gramps. And for one mode of course to florida, methane, We have two moles of ozone in one cycle And give us 0.3159. Malls of ozone dynamic is the ideal gas law equation. To find the volume, it's gonna be P. V. Equals Nrt our pressure. It's 32 millimeters of mercury. We're looking for the volume number of moles, 0.3159. And our constant Can be 0.08 - one. Later. Sounds atmosphere about about moles. I'm kelvin for the temperature Gonna have 288 Melvin. And now we need to convert the pressure from millimeters of mercury to atmosphere 32 kilometers of mercury. We have 760 millimeters of mercury in one atmosphere, You need to give us 0.04 21 atmosphere. You know, if you just plug in the values to the equation to get 0.04 atmosphere times of volume, It's going to be equal to 0.31 59 balls Time 0.08 21. Their sounds atmosphere about about malls. I'm Calvin. I'm Sergeant 88 Calvin committed by both sides by 0.04 atmosphere. We're gonna get the volume. It's gonna be 177 0.4 leaders. But that is in one cycle, We need to determine the volume in 15 cycles. They're going to take 177.4 leaders in one cycle Most about 15 cycles. And this gave us 2661 leaders, Which is 2.7 Times 10 to the 3rd Leaders. Thanks for watching my video and I hope it was helpful.
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Textbook Question

Consider the chemical reaction: C(s) + H2O( g)¡CO( g) + H2( g) How many liters of hydrogen gas are formed from the complete reaction of 15.7 g C? Assume that the hydrogen gas is collected at a pressure of 1.0 atm and a temperature of 355 K.

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Textbook Question

Consider the chemical reaction: 2 H2O(l )¡2 H2( g) + O2( g) What mass of H2O is required to form 1.4 L of O2 at a temperature of 315 K and a pressure of 0.957 atm?

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CH3OH can be synthesized by the reaction: CO( g) + 2 H2( g)¡CH3OH( g) What volume of H2 gas (in L), at 748 mmHg and 86 °C, is required to synthesize 25.8 g CH3OH? How many liters of CO gas, measured under the same conditions, are required?

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Textbook Question

Automobile air bags inflate following a serious impact. The impact triggers the chemical reaction: 2 NaN3(s)¡2 Na(s) + 3 N2( g) If an automobile air bag has a volume of 11.8 L, what mass of NaN3 (in g) is required to fully inflate the air bag upon impact? Assume STP conditions.

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Textbook Question

Lithium reacts with nitrogen gas according to the reaction: 6 Li(s) + N2( g)¡2 Li3N(s) What mass of lithium (in g) reacts completely with 58.5 mL of N2 gas at STP?

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Textbook Question

Hydrogen gas (a potential future fuel) can be formed by the reaction of methane with water according to the equation: CH4( g) + H2O( g)¡CO( g) + 3 H2( g) In a particular reaction, 25.5 L of methane gas (measured at a pressure of 732 torr and a temperature of 25 °C) mixes with 22.8 L of water vapor (measured at a pressure of 702 torr and a temperature of 125 °C). The reaction produces 26.2 L of hydrogen gas at STP. What is the percent yield of the reaction?

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