1. A 5.00 L cylinder is filled with butane at 27 °C until the pressure in the tank is 1.00 atm. What is the pressure in the tank a. on a winter day when the temperature is -10 °C? (2 s.f.) b. on a warm day when the temperature is 40 °C? (2 s. f.)

Hi! I am unsure of how to solve this problem. Thank you!

17 . A 40.0 L weather balloon is filled with air at sea level where the pressure is 1.0 atm and 15 °C.  What will be the volume of the weather balloon, in L, at 6000 feet elevation where the pressure is 1.239 atm and 4.0 oC? 18. An empty 2.00 L soda bottle is filled with 31.89 grams of gaseous CO2.  Calculate the temperature, in oC, at which the bottle will explode if the maximum pressure the bottle can hold is about 10.2 atm. 19. A flask of volume 3.21 L contains a sample of chlorine gas, Cl2, with a pressure of 198 Torr at 25.7 °C.  What mass of sodium is required to completely react with the chlorine gas to make sodium chloride?  Assume the reaction goes to completion and there is no limiting reagent.  Hint: calculate the moles of Cl2 gas in the flask first. (Do not put units in answer) 2 Na (s) + Cl2 (g) --> 2 NaCl (s)

Four samples of the same unknown gas G are listed in the table below. Rank these samples in increasing order of ideality. That is, select 1 next to the sample of G that will behave least like an ideal gas, and select 4 next to the sample of G that will behave most like an ideal gas. How ideal the sample is: pressure volume temperature sample (atm) (L) (°C) A 35.0 2.0 -15.0 (Choose one) ▼ В 30.0 2.0 5.0 (Choose one) ▼ C 35.0 4.0 5.0 (Choose one) ▼ D 25.0 2.0 5.0 (Choose one)