** 16. If nitrogen gas and oxygen gas are combined in a tank, they will be at the same tem- perature and fill the same volume. a) Basing your explanation on the kinetic theory of gases, as derived in Section 15.1, explain why you would find the total pressure in the tank by adding together the indi- vidual pressures of the nitrogen and oxygen acting alone. This conclusion is known as Dalton's Law of Partial Pressures. b) A 1-m³ tank contains 0.8 moles of nitrogen and 0.2 moles of oxygen at 300 K. What is the total pressure in the tank?

Dinitrogen monoxide gas is collected at 28.0 °C in an evacuated flask with a measured volume of 30.0 L. When all the gas has been collected, the pressure in the flask is measured to be 0.290 atm. Calculate the mass and number of moles of dinitrogen monoxide gas that were collected. Be sure your answer has the correct number of significant digits. mass: g dlo mole: |mol I Don't Know Submit O 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility

A sample of an unknown gas with a mass of 1.620g occupied a volume of 941mL when its pressure was 748 torr and its temperature was 20.00 oC.  When made to decompose into its elements, 1.389g of carbon and 0.2314g of hydrogen were obtained.   1. What is the percentage composition of the elements in this gas?   2. Determine its empirical formula.   3. Determine its molecular formula.

MI < CO C. Under identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through identical membranes simultaneously. After a certain amount of time, it was found that 5.75 mL of O2 had passed through the membrane, but only 3.86 mL of of the unknown gas had passed through. What is the molar mass of the unknown gas? unknown molar mass: g/mol MacBook Pro The %23 %$4 delet 4. 5. 3. R. P. H. K. B. MOSISO command uondo

III. Que 1. Suppose you wanted to perform this experiment using aluminum metal. As- suming a volume of hydrogen of 65 mL, a final gas temperature of 25°C, and of aluminum, in grams, to be reacted. (Hint: Use the information about the a gas pressure of approximately 720 torr, calculate the appropriate amount hydrogen gas and work backwards. Be sure to include a balanced chemical equation for the reaction of aluminum with HCl to produce hydrogen gas.) Show your work. answer: grams Al =