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Does temperature make a difference in how much carbon dioxide gas is needed to inflate a 60-L air bag using the reaction of sodium bicarbonate and acetic acid? Compare a winter day at 0°C and standard pressure with a summer day at 35°C and standard pressure. Calculate the number of moles of carbon dioxide gas required for a 60-L inflation at both temperatures and then calculate the percent difference in moles.
Winter Day at 0°C:
Summer Day at 35°C:
What mass of water (in grams) is contained in 2.9 L of the vapor above this solution at 55 C. The vapor pressure of pure water at 55 C is 118 torr. (Assume a van't Hoff factor of 1.9 for NaCl.)
The student did not pre-heat the gravity filtration apparatus in Part 3. c) The student forgot to cool 5 mL of solvent in Part 5 and washed the crystals with room-temperature solvent.
1. What is the formula for the conjugate acid of HSO4-?
What is the maximun number of ballons that can be inflated. Assume that the gas in the cylinder is at the same teperature as the inflated ballons.
A sample of hydrogen gas has a volume of 8.56L at a temperature of 0oC and a pressure of 1.50atm. How many molecules of hydrogen are contained in this sample
5.00 ml of water sample was titrated for hardness with 4.15ml of 0.0200m edta. write the equation for the reaction and
The standard enthalpy of formation of NH3 is -46.0 kL/mol. Compute the thermal energy evolved when 8.0 g of H2 react with an excess of N2.
One Watt is equal to 1 J/s. Assuming that 5.0% of the energy output of a 75 watt lightbulb is visible light and the average wavelength of the visible light is 550nm, how many photons are emitted by the lightbulb per second?
Antacid tablets are made from a variety of compounds. Sodium bicarbonate, magnesium hydroxide and calcium carbonate to name a few.
45.0 mL of 0.35 M NaOH is neutralized by 25 mL of an HCl solution. The molarity of the HCl solution is what?
What is the average molar mass (in g/mol)? What is the relative standard deviation(RSD) in parts per thousand (ppt)? Report your answer to the correct number of significant figures.
A gas sample was collected over water at 25.3 degrees C. The total pressure is determined to be 0.97 atm. What is the partial pressure of the gas that was collected
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