POST-LABORATORY QUESTIONS (Show your calculations). 1. A sample of gas weighs 3.10 g and occupies a...
If 5.00 moles of a gas at constant temperature and pressure occupies a volume of 132.5L, what volume will 1.36 moles occupy at the same temperature and pressure? 0901.0L O 19.49 L O 2.052 X 10–3L 0487.12 0 36.04 L What would be the new pressure if a 250 mL gas sample at 380 mm Hg is expanded to 500 mL with no change in temperature? 0 190 mmHg 0 380 mmHg 0 950 mmHg 0 570 mmHg O 760...
Classwork: Ch. Gases Name 1. A sample of chlorine gas occupies a volume of 946 mL at a pressure of 726 mmg What is the pressure of the gas (in mmHg) if the volume is reduced at constant temperature to 154 ml? 2. A sample of carbon monoxide gas occupies 3.20 L at 125°C. At what temperature will the gas occupy a volume of 154 Lif the pressure remains constant? 3. What is the volume (in liters) occupied by 49.8...
Name Section 6. A sample of gas occupies 500 mL at STP. What volume will the gas occupy at 85.00 and 525 torr 7. A gas canister can tolerate internal pressures up to 210 atmospheres. If a 2.0L canister holding 3.5 moles of gas is heated to 1350°C, will the canister explode? 8. Calculate the density of 0.625 g of carbon dioxide at 26.32C and 1.03 atm. 9. Calculate the number of grams of hydrogen sulfide gas, HS, in a...
a gas occupies 20.0 L at 680 mmHg and temperature of 20 degrees Celsius. what is the gas volume at STP? 2. A gas occupies 20.0 L at 680 mmHg and temperature of 20 °C. What is the gas volume at STP? V 13 - 273=295k A gas occupies 20.0 L at 680 mmHg and temperature of 20 °C. What is the gas volume at STP? HL mass of gas =
II) A gas occupies a volume of 410 mL at 27.0°C and 740 mm Hg. Calculate the volume the gas would occupy at STP. 12) What volume will 2.5 moles of Cl2 occupy at STP ?
08. A sample of a gas occupies 1.4x10 mL at 25°C and 760 mmHg. What volume will it occupy at the same temperature and 380 mmHg? A) 2,8 ml B) 2,1 mL C ) 1,4 ml. D) 1,05 ml
23) What temperature scale is used in gas law calculations? A) Fahrenheit B) Celsius C) Kelvin D) either Celsius or Fahrenheit E) either Celsius or Kelvin 24) At STP, temperature and pressure have the values of A) O K and I atm B) 273 K and I mmHg C) 273 K and 760 mmHg D) O K and 760 mmHg E) 760 K and 25) At STP, how many moles of helium would occupy 1.00 L? A) 2.24 moles B)...
Please answer & explain 26-30 A gas sample is held at constant pressure. The gas occupies 3.62 L of volume when the temperature is 21.6°C. Determine the temperature at which the volume of the gas is 3.45 L 26 d) 295 K 309 K b) 281 K c) 20.6 K a) 27. The temperature of a specific amount of gas in a sealed container changes from 20.0°C to 40.0°C. If the volume remains constant, the pressure will change from 755...
3.A sample of a pure gas at 20 °C and 670 mm Hg occupies a volume of 562 cm3. How many moles of gas are in this sample? 4.An unknown compound contains only carbon and hydrogen. What is the volume (in L) of 1 mol of this gas at 100 °C and 760 mm Hg? 5.The same 1 mol sample of gas from the previous problem has a vapor density of 2.550 g/L. If the empirical formula of the compound...
At 34.75 °C and 2148 mm Hg, a gas occupies a volume of 17.53 L. What volume would it occupy at STP? Assume ideal gas behavior.