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Chapter 9: Q5 E (page 506)
A typical barometric pressure in Denver, Colorado, is 615mm Hg. What is this pressure in atmospheres and kilopascals?
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The pressure of a sample of gas is measured at sea level with a closed-end manometer. The liquid in the manometer is mercury. Determine the pressure of the gas in: (a) torr (b) Pa (c) bar.
Question:A 1-L sample of CO initially at STP is heated to 5460C, and its volume is increased to 2-L. (a) What effect do these changes have on the number of collisions of the molecules of the gas per unit area of the container wall? (b) What is the effect on the average kinetic energy of the molecules? (c) What is the effect on the root mean square speed of the molecules?
Automobile air bags are inflated with nitrogen gas, which is formed by the decomposition of solid sodium azide (NaN3). The other product is sodium metal. Calculate the volume of nitrogen gas at 27 掳C and 756 torr formed by the decomposition of 125 g of sodium azide
Question: During the discussion of gaseous diffusion for enriching uranium, it was claimed that \(^{{\rm{235}}}{{\rm{U}}_{\rm{6}}}\) diffuses 0.4% faster than\(^{{\rm{235}}}{{\rm{U}}_{\rm{6}}}\). Show the calculation that supports this value. The molar mass of \(^{{\rm{235}}}{{\rm{U}}_{\rm{6}}}{\rm{ = 235}}{\rm{.043930 + 6 \times 18}}{\rm{.998403 = 349}}{\rm{.034348 g/mol}}\), and the molar mass of \(^{{\rm{238}}}{{\rm{U}}_{\rm{6}}}{\rm{ = 238}}{\rm{.050788 + 6 \times 18}}{\rm{.998403 = 352}}{\rm{.041206 g/mol}}\).
What volume of oxygen at 423.0 K and a pressure of 127.4 kPa is produced by the decomposition of 129.7g of BaO2 to BaO and O2?
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