18. You fill a balloon with 2.50 moles of gas at 28°C at a pressure of...
You fill a balloon with 0.525 moles of helium in a room that is 21 degrees celcius and the pressure is 1.005 atm. What is the volume of that balloon?
QUESTION 18 4.9 A balloon contains 17.33 L of gas at a pressure of 4.85 atm. What will the pressure be (in atm) if the volume is decreased to 6.27 L, with the temperature remaining constant?
1)a If a sample of oxygen gas has a volume of 4.89 L at 20.0 °C and a pressure of 1.20 atm. If the temperature was increased to 56.0 °C then what would its resultant volume be (in L?) Assume the new pressure is 1.20 atm. b At STP, 297.0 mL of a certain gas has a mass of 0.366 g. What is a possible identity of this gas? Select one: a. O3 b. Cl2 c. C2H6 d. O2 e....
If a sample of oxygen gas has a volume of 4.89 L at 20.0 °C and a pressure of 1.20 atm. If the temperature was increased to 56.0 °C then what would its resultant volume be (in L?) Assume the new pressure is 1.20 atm.
a.) A 2.50 L flask was used to collect a 2.65 g sample of propane gas, . After the sample was collected, the gas pressure was found to be 743 mmHg. What was the temperature of the propane in the flask? ______°C b.)Butane,C4H10 , is an easily liquefied gaseous fuel. Calculate the density of butane gas at 0.791 atm and 24°C. Give the answer in grams per liter. Density = ______g/L c.) A 0.488-g sample of a colorless liquid was...
A gas-filled balloon with a volume of 2.10 L at 1.20 atm and 20°C is allowed to rise to the stratosphere (about 30 km above the surface of the Earth), where the temperature and pressure are −23°C and 3.00×10−3 atm, respectively. Calculate the final volume of the balloon.
A gas-filled balloon having a volume of 2.70 L at 1.20 atm and 26 ° C is allowed to rise to the stratosphere (about 30 km above the surface of the Earth), where the temperature and pressure are −41 ° C and 5.90 × 10−3 atm, respectively. Calculate the final volume of the balloon.
a) A helium-filled weather balloon has a volume of 521 L at 17.9°C and 758 mmHg. It is released and rises to an altitude of 5.22 km, where the pressure is 472 mmHg and the temperature is –14.1°C. The volume of the balloon at this altitude is ______L b) A sample of krypton gas occupies a volume of 6.19 L at 56.0°C and 382 torr. If the volume of the gas sample is decreased to 4.90 L, while its temperature...
Problem 7. The pressure inside a 1.0L balloon at 25 in atmospheres, when the balloon is cooled to -42°C the Combined Gas law). Ans: is the pressure is 745 mmHe What is the pro expands to 2.0 L in volume Problem 8. A sample of nitrogen gas contains the new volume if the P and Tare kept constant, but to 2.5 moles. (Use the Avogadro's law). Ans: V2 ° 2.5 moolume if pleoni O moles in a volume of 3.5...
A balloon vendor at a street fair is using a tank of helium to fill her balloons. The tank has a volume of 193.0 L and a pressure of 115.0 atm at 25.0 °C. After a while she notices that the valve has not been closed properly. The pressure had dropped to 105.0 atm. (The tank is still at 25.0 °C.) How many moles of gas has she lost? final volume= 211.38 L