Here is the overall reaction in an automobile airbag:20NaN3 (s) + 6SiO2 (s) + 4KNO3 (s) -----> 32N2 (g) + 5Na4SiO4 (s) + K4SiO4 (s) Calculate how many grams of sodium azide (NaN3) are needed to inflate a 30.0  × 30.0  × 20.0 cm bag to a pressure of 1.20  atm at a temperature of 10.0°C?

Chemistry by OpenStax (2015-05-04)
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Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
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Chapter9: Gases
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Problem 17E: How would the use of a volatile liquid affect the measurement of a gas using open-ended manometers...
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Here is the overall reaction in an automobile airbag:
20NaN3 (s) + 6SiO2 (s) + 4KNO3 (s) -----> 32N2 (g) + 5Na4SiO4 (s) + K4SiO4 (s)

Calculate how many grams of sodium azide (NaN3) are needed to inflate a 30.0  × 30.0  × 20.0 cm bag to a pressure of 1.20  atm at a temperature of 10.0°C?

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