8. The graph to the left shows the distribution of gas molecules with different velocities (u). 8a-c. If A and B are different gases at the same temperature: A Circle/list answers a. Which has the lower molar mass? А B same В b. Which has the lower kinetic energy? A B same c. From a 50/50 molar mixture of the two gases, which would be enriched by effusion into a vacuum chamber: и A B neither

Consider two hypothetical gases, gas A and gas B, which have the following Van der Waals constants: Gas A: a = 0.0 L² bar mol-² b=0.0174 L mol-¹ Gas B: a = 0.0 L² bar mol-2 b=0.0237 L mol-1 In one sample, 10 moles of gas A is placed in a 1.00 L container at 350 K. In the second sample, 10 moles of gas B is placed in a different 1.00 L container at 350 K. Compare the pressures in the two containers with the pressure predicted by the Ideal Gas Law. Which of the following statements is correct? The pressure of Gas B will deviate less than the pressure of Gas A from the pressure predicted by the Ideal Gas law. The pressure of Gas B will be larger than that predicted by the Ideal Gas Law. The pressure of Gas A will deviate less than the pressure of Gas B from the pressure predicted by the Ideal Gas law. The pressure of Gas A will be larger than that predicted by the Ideal Gas Law. The pressure of Gas A will deviate less than the pressure of Gas B from the pressure predicted by the Ideal Gas…

How many grams of sodium hydrogen carbonate decompose to give 23.4 mL of carbon dioxide gas at STP? 2NaHCO3(s)⟶ΔNa2CO3(s)+H2O(l)+CO2(g) Express your answer with the appropriate units. mNaHCO3=

6. Gas containers A and B each contains an ideal gas at low pressure and 298 K. The volume of container A is twice that of container B, but the number of moles of ideal gas contained in A is only halfof that in B. a. Calculate the ratio of the gas pressures in the two containers. b. If the ideal gas in container A is replaced by an equal number of moles of carbon diaxide, which cannot be conside redas an ideal gas under these conditions, how will the pressure in container A change? Explain.

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Calculate the pressure of carbon dioxide gas in the reaction vessel after the reaction. You may ignore the volume of the liquid reactants. Round your answer to 2 significant digits.

Sixth grade J.1 How does particle motion affect temperature? XU5 Imagine two pure samples of gas in identical closed containers: sample A and sample B. Sample A has a higher temperature than sample B. Each of the statements below is true about the samples. Which statements describe a property that contributes to the difference in temperature? Select all that apply. Each particle in sample A has more mass than each particle in sample B. The particles in sample A have a higher average speed than the particles in sample B. The total mass of sample A is higher than the total mass of sample B. Submit Work it out Not feeling ready yet? This can help: Use tables and graphs to identify patterns about kineti... (100)

You are baking some cookies for your holiday party this weekend. You add 1/2 teaspoon of baking soda(sodium bicarbonate, NaHCO3) to the cookie dough. When heated, the baking soda releases carbon dioxide (CO2) gas causing the cookies to rise. Balance the chemical reaction below. Calculate the volume of CO2 gas produced in liters when the baking soda is heated in the over at 375 degrees F at 84.0 kPa. Useful information: 1 tsp = 4.6 grams NaHCO3

When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2 Al(s) + 6 HC1(aq) 2 AICI, (aq) + 3 H, (g) What volume of H, (g) is produced when 7.10 g Al(s) reacts at STP? volume of H, (g):

In Dalton's Law of Partial Pressures: Ptrapped gas = Pdry gas + Pwater vapor  Why must the pressure of water vapor be included in this calculation? a. The pressure exerted by the evolved H2(g) is reduced because of the co-presence of water vapor, thus Pwater vapor has to be added to Pdry gas. b. Some of the liquid water evaporates into the gas, and increases the total pressure generated by the trapped gas. c. As the H2(g) is bubbled up the reaction solution, some of the H2(g) molecules are solubilized by water in the aqueous solution, effectively decreasing the measured pressure above. d. The pressure contributed by the H2(g) is greater than the measured total pressure because of the contribution of partial pressure of water vapor.