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Suppose it is a hot summer day (104.0 oF), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. As part of your chemistry lab class, you have to build a safe and effective potato gun to share with the local elementary school, and you must be sure that the combustion chamber is well insulated and will not harm (burn) the shooter. You spray the warm hairspray into the 2.50 L chamber on your gun. You seal the cap, then ignite it, and the resulting gas expands to 12.0 L as the potato is shot out.
What is the final temperature, in Celsius, inside the combustion chamber?
What is this temperature in Fahrenheit?
Select all of the correct statements about the relative acid strengths of pairs of acids from the choices below. HCl is a stronger acid than H2S because Cl is more electronegative than S.
An aqueous solution is 35 % by mass methylamine (CH3NH2) and has a density of 0.85 g/cm3. What is the pH of the resulting solution if 50 mL of this solution is diluted
Zn (s) + 2HCl (liq) -> H2 (g) + ZnCl2 (s), How many moles of ZnCl2 form when 6.3 mol of Zn reacts?
What is the sign of the entropy change for the heat transfer. You probably know that when two objects at different temperatures are brought into contact, heat always travels from the hotter object to the colder object; never the reverse.
accidentally mixed. A 4.50-g sample is burned, and 2.70 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?
A sample of oxygen gas () was found to effuse at a rate equal to three times that of an unknown gas. The molecular weight of the unknown gas is __________ g/mol.
Determine the end (final) value of n in a hydrogen atom transition, if the electron starts in n = 4 and the atom emits a photon of light with a wavelength of 486 nm.
what minimum mass of succimer in rm mg is needed to bind all of the lead in a patients bloodstream? assume that patient
Consider the data below representing a run for the Clock Reaction you'll be performing in lab. Calculate the rate of reaction in M/s if the volumes of reagents indicated are combined and 219 seconds elapse before the color appears.
1-methylcyclohexanol reacted with 1. RCO3H 2.H+,H20 location of the Oxygen from water needs to be indicated in the final product
Atmospheric pressure yesterday was given as 0.875 atm. Express this pressure in units of torr as well as also in kilopascals (kPa) respectively.
What would happen to the calcium ion concentration in a saturated solution of Ca(OH)2 if the hydroxide ion concentration is increased by dissolving solid NaOH. What is the name of this effect
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