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Problem: In 1897 the Swedish explorer Andreé tried to reach the North Pole in a balloon. The balloon was filled with hydrogen gas. The hydrogen gas was prepared from iron splints and diluted sulfuric acid. The reaction isFe(s) + H2SO4(aq) → FeSO4(aq) + H2(g)The volume of the balloon was 4800 m3 and the loss of hydrogen gas during filling was estimated at 20.%. What mass of iron splints and 98% (by mass) H2SO4 were needed to ensure the complete filling of the balloon? Assume a temperature of 0°C, a pressure of 1.0 atm during filling, and 100% yield.

FREE Expert Solution
  • First need find how much moles of H2 does a 4800 m3 balloon contain. 
  • We will be using the ideal gas equation to find the moles of H2 using the conditions provided
  • The moles of H2 is related to the moles of Fe and H2SO4 using the balanced equation provided which in turn will give us the mass Fe and H2SO
  • For the volume of H2, if there was 20% loss, this means that 4800 m3 is 80% of the total H2 that was produced (assuming that 20% is in volume as well)

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Problem Details

In 1897 the Swedish explorer Andreé tried to reach the North Pole in a balloon. The balloon was filled with hydrogen gas. The hydrogen gas was prepared from iron splints and diluted sulfuric acid. The reaction is

Fe(s) + H2SO4(aq) → FeSO4(aq) + H2(g)

The volume of the balloon was 4800 m3 and the loss of hydrogen gas during filling was estimated at 20.%. What mass of iron splints and 98% (by mass) H2SO4 were needed to ensure the complete filling of the balloon? Assume a temperature of 0°C, a pressure of 1.0 atm during filling, and 100% yield.



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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Gas Stoichiometry concept. If you need more Gas Stoichiometry practice, you can also practice Gas Stoichiometry practice problems.

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Based on our data, we think this problem is relevant for Professor Hilty's class at TAMU.

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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.