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# reader8 - Chapter 6 Gases 1 9 11 13 19 23 25 27 31 33 39 41...

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Chapter 6: Gases 1, 9, 11, 13, 19, 23, 25, 27, 31, 33, 39, 41, 45, 51, 53, 59, 61, 63, 71, 73, 111, 112, 113 Extra problem (not from book): i & ii Pressure and Its Measurement 1.” Convert each pressure to an equivalent pressure in standard atmospheres. (a) 736 mmHg; (b) 58.2 cm Hg; (c) 892 Torr; (d) 225 kPa. The Simple Gas Laws 9.” A sample of O 2 (g) has a volume of 26.7 L at 762 Torr. What is the new volume if, with the temperature and amount of gas held constant, the pressure is (a) lowered to 385 Torr; (b) increased to 3.68 atm? 11.” We want to increase the volume of a fixed amount of gas from 57.3 to 165 mL while holding the pressure constant. To what value must we change the temperature if the initial temperature is 22 °C?

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13.” A 35.8-L cylinder of Ar(g) is connected to an evacuated 1875-L tank. If the temperature is held constant and the final pressure is 721 mmHg, what must have been the original gas pressure in the cylinder, in atmospheres? 19.” A 27.6-mL sample of PH 3 (g) (used in the manufacture of flame-retardant chemicals) is obtained at STP. (a) What is the mass of this gas, in milligrams? (b) How many molecules of PH 3 are present? General Gas Equation 23.” A sample of gas has a volume of 4.25 L at 25.6 °C and 748 mmHg. What will be the volume of this gas at 26.8 °C and 742 mmHg?
25.”

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reader8 - Chapter 6 Gases 1 9 11 13 19 23 25 27 31 33 39 41...

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