A compressed gas cylinder at 13,700 kPa and 23°C, is in a room where a fire raises the temperature to 450.°C. What is the new pressure of the cylinder, in atm? The volume of the cylinder does not change.

1. Express R, the gas law constant in units of mL•kPa/mol•K by converting L and atm to mL and kPa, respectively. Show all your work and calculations.

An experiment is performed to determine the volume of gas produced by the following reaction: 2HCl(aq) + Mg­(s)                  MgCl2(aq) + H2(g) A.  What is the maximum mass of Mg in g that could be reacted at 20oC temperature and 1.0atm, if the volume of the gas burette is 50mL? (Hint: Find moles of H2 using the ideal gas law; then, convert to g of Mg.)   B. If the experiment were moved to a higher elevation and the pressure was decreased to 0.95 atm would the maximum amount of Mg increase or decrease?   C. If 16mg of Mg were reacted, what is the volume of gas produced in this reaction?   D. What is the solvent for this reaction?   E. Would the HCl(aq) be considered a strong, weak, or non-electrolyte?   F. Would the MgCl2(aq) be considered a strong, weak, or non-electrolyte?

Calculate the temperature in oC for a 1.9 moles of carbon dioxide in a 1,290 mL container at a pressure of 495.2 kPa. Note: R = 0.08206 L atm/(K mol).

For many purposes we can treat butane (C,H10) : as an ideal gas at temperatures above its boiling point of – 1. °C. Suppose the pressure on a 43.0 g sample of butane gas at 14.0°C is reduced to one-third its initial value. Oyes Is it possible to change the temperature of the butane at the same time such that the volume of the gas doesn't change? к10 no If you answered yes, calculate the new temperature of the gas. Round your answer to the nearest °C.

When limestone (solid CaCO3) is heated, it decomposes into lime (solid CaO) and carbon dioxide gas. This is an extremely useful industrial process of great antiquity, because powdered lime mixed with water is the basis for mortar and concrete - the lime absorbs CO₂ from the air and turns back into hard, durable limestone. Suppose a limekiln of volume 800. L is pressurized with carbon dioxide gas to 14.9 atm, and heated to 960.0 °C. When the amount of CO, has stopped changing, it is found that 3.96 kg of CaCO, have appeared. Calculate the pressure equilibrium constant K, this experiment suggests for the equilibrium between CaCO3 and CaO at 960.0 °C. Round your answer to 2 significant digits. Note for advanced students: it's possible there was some error in this experiment, and the value it suggests for K, does not match the accepted value. K = 3.07 P

The combustion of gasoline (octane, C8H18) as shown in the following equation is what powers most cars. CO2 is a major cause of climate change. What mass of CO2 is produced by one tank of gasoline that holds 1.63x104 L at a temperature of 80.0°C and a pressure of 101.3 kPa? Plants use the CO2 produced to make glucose and O2. A mature tree can absorb 22 kg of CO2 a year. How many trees are required to absorb the CO2 produced by one tank of gas?  2 C8H18 (g)         ->       25 O2 (g)       ->        16 CO2 (g)       ->     18 H2O (g)

Calculate the pressure, in atmospheres, of 2.40 molesmoles of helium gas in a 10.0-LL container at 21 ∘C∘C. Express your answer with the appropriate units.

When limestone (solid CaCO3) is heated, it decomposes into lime (solid CaO) and carbon dioxide gas. This is an extremely useful industrial process of great antiquity, because powdered lime mixed with water is the basis for mortar and concrete the lime absorbs CO₂ from the air and turns back into hard, durable 2 limestone. Suppose some calcium carbonate is sealed into a limekiln of volume 400. L and heated to 740.0 °C. When the amount of CaCO3 has stopped changing, it is found that 3.37 kg have disappeared. P 00. Calculate the pressure equilibrium constant K this experiment suggests for the equilibrium between CaCO3 and CaO at 740.0 °C. Round your answer to 2 significant digits. Ar Note for advanced students: it's possible there was some error in this experiment, and the value it suggests for K does not match the accepted value. р K₁ = 0 x10 р x Ś ? Explanation Check 0 81 K © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility