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Alka-seltzer is a tablet that people take to control acid indigestion. When it is added to water, Alka-seltzer produces carbon dioxide gas. This gas can produce pressure, causing the top to pop off a film cannister in a specific period of time. Your investigation involves determining how the temperature of water will affect the rate at which carbon dioxide gas forms. The materials that are available to you are: film canister with top, thermometer, water, kettle, ice, Alka-Seltzer tablets, timer a. Hypothesize how temperature will affect the rate at which carbon dioxide forms. (1:1) Give specific reasons for your answer (A:3) b. Based upon the materials listed above, design an experiment to fairly test your hypothesis. Ensure you number your steps. (1:2, C:2) From your experiment, you collect the following data: Temperature Time for top to pop off cannister (s) Cold 60 s Hot 20 s Warm 40 s Table 1: Time it took for top to pop off film canister after Alka-seltzer has been added to water.…

Nitroglycerine ( C3H5N3O9) is a very strong explosive that degrades over time and is too shock sensitive to transport safely. Dynamite is made by combining nitroglycerine with stabilizers and adsorbents, which makes it much safer to use. The explosion of nitroglycerin can be represented by: 4C3H5N3O9(l)→6N2(g)+12CO(g)+10H2O(g)+7O2(g) A stick of 40% dynamite is about 20 cm long and about 3 cm in diameter and weighs 203 grams. It is 40.0% nitroglycerine by mass. What is the total number of moles of gas produced when a stick of 40% dynamite explodes?

A natural-gas storage tank is a cylinder with a moveable topwhose volume can change only as its height changes. Its radiusremains fixed. The height of the cylinder is 22.6 m on a day whenthe temperature is 22°C. The next day the height of the cylinderincreases to 23.8 m when the gas expands because of a heatwave. Find the temperature on the second day, assuming that thepressure and amount of gas in the storage tank have not changed.

1. Pressure drops with altitude, and in fact Denver has an atmospheric pressure of 83.3 kPa, compared with 101.3 kPa at sea level. To soft-cook an egg requires 5-6 minutes at sea level. Use your knowledge of atmospheric pressure to explain why it will take longer to soft-cook an egg in Denver. 2.The Salesforce Tower is the tallest building in San Francisco, at a height of 330 m; would you expect to see a difference in the boiling point of water between the ground and highest floors? Explain your answer.

A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas reaction vessel. The vessel is a stainless-steel cylinder that measures 52.0 cm wide and 62.4 cm high. The maximum safe pressure inside the vessel has been measured to be 3.00 MPa. For a certain reaction the vessel may contain up to 2.61 kg of carbon dioxide gas. Calculate the maximum safe operating temperature the engineer should recommend for this reaction. Write your answer in degrees Celsius. Be sure your answer has the correct number of significant digits. temperature: c

Before small batteries were available, carbide lamps were used for bicycle lights. Acetylene gas, C2H2, and solid calcium hydroxide were formed by the reaction of calcium carbide, CaC2, with water. The ignition of the acetylene gas provided the light. Currently, the same lamps are used by some cavers, and calcium carbide is used to produce acetylene for carbide cannons.(a) Outline the steps necessary to answer the following question: What volume of C2H2 at 1.005 atm and 12.2 °C is formed by the reaction of 15.48 g of CaC2 with water?(b) Answer the question.

Describe the classification of evaporators. Explain the factors that affect evaporationprocess. Please answer at your own easy words.

Gases produced by a chemical reaction can easily be collected over water. To determine the pressure of the dry gas, the vapor pressure of the water at that temperature must be subtracted from the total pressure. 1) Consider the following reaction: Mg(s) +2 HC1(ag) → MgCl2(ag) + H2(9) The total pressure of gas collected over water is 695.0 mmHg and the temperature is 24.0°C What is the pressure of hydrogen gas formed in mmHg? Pressure = mmHg

dmont Community Co X genow.com/ilm/takeAssignment/takeCovalentActivity.do?locator=assignment-take [References] Use the References to access important values if needed for this question. The rate of effusion of Xe gas through a porous barrier is observed to be 8.29 x 10 mol/h. 4 Under the same conditions, the rate of effusion of NH3 gas would be mol/h.

The planet Jupiter has a surface temperature of 140 K and a mass 318 times that of Earth. Mercury (the planet) has a surface temperature between 600 K and 700 K and a mass 0.05 times that of Earth. On which planet is the atmosphere more likely to obey the ideal-gas law? Explain. >

14. For O2 gas in thermal equilibrium with boiling sulfur, the following values of PV versus P are found. What is the normal boiling point? (THIS IS THE TABLE, VALUES ARRANGED RESPECTIVELY) P/torr: 1000, 500, 250 PVm/(L atm mol): 59.03, 58.97, 58.93 PROVIDE THIS ANSWERS -In 2 decimal places. -No need to show a graph. -Require: x and y data, the equation of the line, and the solution to get the final answer. in conclusion you must provide me the 1. X AND Y DATA 2. EQUATION OF THE LINE 4. FULL SOLUTION TO GET THE FINAL ANSWER (Answer given in answer key is 717.8K)

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Shoiyour work in the space provided by typing out the numbers andnath used. Be sure your final answer includes all appropriate uni and is highlighted. Your car tire pressure at the beginning of a road trip is 2.33atm when the tire temperature is 20.0°C. How hot would your tires have to be in order for the pressure to increase to 2.53atm? Edit View Insert Format Tools Table 12pt v Paragraph B I