Plz help me out i need it big time its 5 different questions 2.5 L of a gas is heated from 200 K to 300 K. What is the final volume of the gas?

If a 3.5 mole sample of gas is at 21 °C and 2 atm, what is the volume of the gas?

A 20 L container of gas has its volume decrease to 15 L and its pressure increases to 3.5 atm. What was the initial pressure of the gas?

At 150 K a gas has a pressure of 700 torr. At what temperature must the gas be at for its pressure to be 350 torr?A balloon filled with 13 moles of gas occupies 1200 mL.

If 2 moles of gas are added to the balloonm what is the final volume?

Your

Listen base your answer to the question on the information below.propane is a fuel that is sold in rigid, pressurized cylinders. most of the propane in a cylinder is liquid, with gas in the space above the liquid level. when propane is released from the cylinder, the propane leaves the cylinder as a gas. propane gas is used as a fuel by mixing it with oxygen in the air and igniting the mixture, as represented by the balanced equation below.c3h8(g) + 5o2(g) → 3co2(g) + 4h2o() + 2219.2 kja small amount of methanethiol, which has a distinct odor, is added to the propane to consumers detect a propane leak. in methanethiol, the odor is caused by the thiol functional group (–sh). methanethiol, ch3sh, has a structure that is very similar to the structure of methanol.what is the correct structural formula for a molecule of methanethiol

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.