6. At \( 20^{\circ} \mathrm{C} \), the volume of chlorine gas is \( 15 \mathrm{dm}^{3} \). Compute for the resulting volume if the cemperature is adjusted to 318 K provided that the pressure remains the same. \( \qquad \) \( \qquad \) 7. A certain light bulb containing argon has a pressure of 1.20 atm at \( 18^{\circ} \mathrm{C} \). If it will be heated to \( 85^{\circ} \mathrm{C} \) at constant volume, what will be the resulting pressure?
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- Initial temperature: \(20^{\circ} \mathrm{C} = 20 + 273.15 = 293.15 \, \mathrm{K}\) Show more…
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P21. (Sec. 8.7) What pressure, in atm, is exerted by 65 grams of chlorine gas, Cl2, if it occupies a volume of 5.75 L at a temperature of -10 °C? (R = 0.0821 L × atm / mol × K) 70.1 atm 0.549 atm 3.44 atm 1.77 atm 3.10 atm P22. (Sec. 8.7) What volume, in mL, will 675 mg of ammonia gas, NH3, occupy at a pressure of 765 mm Hg and a temperature of 15 °C? (R = 0.0821 L × atm / mol × K) 45.1 mL 931 mL 17.3 mL 114 mL 2.76 mL P23. (Sec. 8.7) What mass, in grams, does carbon dioxide gas, CO2, occupy at a volume of 975 mL, a pressure of 743 mm Hg, and a temperature of -5.5 °C? (R = 0.0821 L × atm / mol × K) 8.65 grams 4.11 grams 2.16 grams 1.91 grams 0.653 grams P24. (Sec. 8.7) When glucose, C6H12O6, is fermented with yeast, ethanol, C2H5OH, and CO2 are produced. If 100 grams of C6H12O6 is completely fermented, what volume of CO2 is produced at 37 °C and a pressure of 758 mm Hg? [Mole Ratio] & (R = 0.0821 L × atm / mol × K) C6H12O6(s) → 2C2H5OH(l) + 2CO2(g) 45.6 L 10.3 L 54.3 L 28.3 L 1.97 L
Dinesh S.
1. A sample of krypton gas at a pressure of 1.02 atm and a temperature of 167°C, occupies a volume of 587 mL. If the gas is heated at constant pressure until its volume is 849 mL, the temperature of the gas sample will be ___°C. 2. A sample of carbon dioxide gas at a pressure of 836 mmHg and a temperature of 43°C, occupies a volume of 13.3 L. If the gas is cooled at constant pressure to a temperature of 5°C, the volume of the gas sample will be ___L. 3. A helium-filled weather balloon has a volume of 542 L at 16.9°C and 755 mmHg. It is released and rises to an altitude of 2.54 km, where the pressure is 617 mmHg and the temperature is 1.9°C. The volume of the balloon at this altitude is ___ L. 4. A sample of helium gas occupies a volume of 6.64 L at 59.0°C and 0.440 atm. If it is desired to increase the volume of the gas sample to 9.30 L, while decreasing its pressure to 0.284 atm, the temperature of the gas sample at the new volume and pressure must be ___°C. 5. A 0.129 mol sample of argon gas has a volume of 912 milliliters at a pressure of 4.54 atm. The temperature of the gas sample on the Celsius scale is ___°C. 6. A sample of krypton gas collected at a pressure of 0.843 atm and a temperature of 14.0°C is found to occupy a volume of 28.7 liters. How many moles of gas are in the sample? ____ mol 7. A sample of krypton gas that occupies a volume of 44.6 L at a temperature of 0°C and a pressure of 1 atm contains ____ moles of gas. 8. A 0.580 mol sample of helium gas occupies a volume of ___ L at STP. 9. The stopcock connecting a 2.00 L bulb containing methane gas at a pressure of 628 mm Hg, and a 2.00 L bulb containing neon gas at a pressure of 646 mm Hg, is opened and the gases are allowed to mix. Assuming that the temperature remains constant, what is the final pressure in the system? ____ mm Hg 10. A mixture of krypton and carbon dioxide gases is maintained in a 9.62 L flask at a temperature of 70°C. If the partial pressure of krypton is 0.371 atm and the partial pressure of carbon dioxide is 0.213 atm, what is the total pressure in the flask? ___ atm
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