Calculate the pressure of a gas if 8.04 moles occupies 31.8 L at 35oC

Sometimes in Io we collect the gas formed by a chemical reaction over water (see sketch at right). This makes it easy to isolate and measure the amount of gas produced. collected gas Suppose the O, gas evolved by a certain chemical reaction taking place at 30.0 °C is collected over water, using chemical reaction water an apparatus something like that in the sketch, and the final volume of gas in the collection tube is measured to be 44.8 mL. Sketch of a gas-collection apparatus ab Calculate the mass of O, that is in the collection tube. Round your answer to 2 significant digits. You can make any normal and reasonable assumption about the reaction conditions and the nature of the gases. Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use I Privacy Center | Accessibility 6:20 AM N 35°F Mostly cloudy ENG 1/23/2022 Pll 26 506 F90 T. 4. R] T Y D F

STP (standard temperature and pressure) is used as a reference point for the molar volume of an ideal gas. In the USA, most chemists, most general chemistry texts, and OWL use STP = 0°C, 1 atm, where the molar volume = 22.4 L/mol. If the reference pressure is chosen to be 1 bar, the molar volume is 22.7 L/mol. Do not confuse the two. A 0.580 mol sample of xenon gas occupies a volume of  L at STP.

What are the units of a? What are the units of b? For carbon dioxide the numerical value of a is 3.592 and the numerical value of b is 0.0429. atm Use the van der Waals equation to calculate the pressure of a sample of carbon dioxide at 55.0 °C with a molar volume of 0.515 L/mol. Round your answer to 3 significant digits. Use the Ideal Gas Law to calculate the pressure of the same sample under the same conditions. Round this answer to 3 significant digits also. atm Explanation Check

Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right). This makes it easy to isolate and measure the amount of gas produced. collected gas chemical reaction water Suppose the CÓ gas evolved by a certain chemical reaction taking place at 30.0 °C is collected over water, using an apparatus something like that in the sketch, and the final volume of gas in the collection tube is measured to be 131. mL. Sketch of a gas-collection apparatus alo Calculate the mass of CO that is in the collection tube. Round your answer to 2 significant digits. You can make any normal and reasonable assumption about the reaction conditions and the nature of the gases. Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center| Acce: 12:05 AM ENG 42°F Cloudy 1/22/202 DELL

What is the molecular weight of a gas which has a density of 2.25 g / L at 20.0oC and 1.12atm?

Consider the two flasks joined together with a stopcock (shown in the diagram below). Calculate the final partial pressure contributed by each gas to the mixture when the stopcock connecting the flasks is opened. (Assume the total volume is 6 L). 4 1 L of N₂ at 303000 Pa 5 L of H₂ at 101000 Pa a. рH₂= 84167 Pa, pN₂ = 50500 Pa = рн₂ 101000 Pa, pN₂= 101000 Pa рH₂=50500 Pa, pN₂ = 84167 Pa рн₂= 134667 Pa, pN₂ = 50500 Pa e. рH₂= 84167 Pa, pN₂ = 134667 Pa оооо O b. OC. O d.

The van der Waals equation of state was designed (by Dutch physicist Johannes van der Waals) to predict the relationship between pressure p, volume V and temperature I for gases better than the Ideal Gas Law does: 72 (V-nb)= nRT The van der Waals equation of state. R stands for the gas constant and n for moles of gas. The parameters a and b must be determined for each gas from experimental data. Use the van der Waals equation to answer the questions in the table below. What are the units of a? What are the units of b? For argon the numerical value of a is 1.337 and the numerical value of b is 0.0320. Use the van der Waals equation to calculate the pressure of a sample of argon at -110.0 °C with a molar volume of 2.98 L/mol Round your answer to the correct number of significant digits. atm Use the Ideal Gas Law to calculate the pressure of the same sample under the same conditions. Round your answer to the correct number of significant digits. atm x10 §