WILL GIVE 100 POINTS AND BRAINLIEST TO WHOEVER ANSWERS ALL FIRST
1. Oxygen occupies 150. mL at 720 Mm pressure. How many mL with it occupy at 750. Mm?

2. Nitrogen is Collected when the pressure is 800. Mm having a volume of 190 mL. What volume will it occupy at standard pressure?

3. Hydrogen has a volume of 300. mL when pressure is 740. Mm. What volume will it occupy at 700. Mm pressure?

4. Helium has a volume of 200.0 mL at 73.0 cm pressure. What pressure in cm is needed to reduce its volume to 50.0 mL?

5. Given 100. mL of hydrogen collected at 27 C, what volume will it occupy at 42 C?

6. Argon Occupies 155 mL of volume when its temperature is 37 C. At what Celcius temperature will the volume be 125 mL?

7. Oxygen occupies 80.0 mL of volume at -33 C. What is its volume at 33 C?

8. Methane gas occupies 58.0 L at 17 C. What is the new volume at standard temperature?

Salicylic acid is a very important acid. it is used to synthesize the aspirin by treating with acetic anhydride. a 0.2015-g sample of salicylic acid was dissolved in a 100.00-ml volumetric flask, and the solution was diluted to the mark. a 10-ml aliquot of this solution was titrated with standard naoh (0.01130 + 0.2% n) to a phenolphthalein faint pink color end point at 19.81 ml. (a) (calculate the normality of the salicylic acid solution used in the titration. (b) assuming the salicylic acid is pure, what is the equivalent weight of the salicylic acid? practice problems for the final exam (continued) (c) (calculate the inherent error in the determination of the equivalent weight you calculated in part (b). use the following absolute errors in the equipment /glassware when calculating the inherent error. 5.00-ml pipet: + 0.02 ml 100-ml volumetric flask: + 0.08 ml analytical balance: + 0.2 mg 25-ml buret: + 0.03 ml

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .