
To calculate:
a) The grams of sodium azide needed to inflate a bag at the given pressure and temperature.
b) How much more sodium azide is needed if the bag must produce the same pressure at

Answer to Problem 10.137QA
Solution:
a)
b)
Explanation of Solution
1) Concept:
The volume of the bag is calculated using its dimensions. Using the
2) Formula:
3) Given:
i) Dimensions of the bag =
ii) Pressure,
iii) Temperature,
iv) Temperature,
4) Calculations:
a) Calculation for the mass of sodium azide needed to inflate the bag at given
Calculating the volume of the bag:
The dimensions of the bag are given. From this, the volume of the bag is
Calculating the moles of gas
Calculating the moles of sodium azide,
From the balanced reaction, it is seen that
Calculating the mass of sodium azide:
b) Calculation for the mass of sodium azide needed to inflate the bag at the given
The number of moles of
The additional mass of
Thus,
Conclusion:
The ideal gas equation is used to calculate the moles of the
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Chapter 10 Solutions
Chemistry: An Atoms-Focused Approach (Second Edition)
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