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A hot air balloon is filled with 1.51 x 10^6 L of an ideal gas on a cool morning (11 C). The air is heated to 125 C. What is the volume of the air in the ballon after it is heated? Assume that noen of the gas escapes from the balloon.
what is the purpose of placing a lead apron on a person who is receiving routine dental X-rays? d)why are the walls in a radiation lab built of thick concrete blocks
a running track measures 1056 ft per lap. to run 15.0 km how many laps should you run? How do you break the equation down into a solution map?
An unknown compound was decomposed and found to be composed of 1.36 mol oxygen, 4.10 mol hydrogen, and 2.05 mol carbon. What is the empirical formula of the unknown compound?
A sample of an unknown gas effuses in 11.9 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.00 min. What is the molar mass of the unknown gas
Give the structures of a hydrocarbon that has six carbon atoms and a) three vinylic hydrogens and two allylic hydrogens b) three vinylic hydrogens and no allylic hydrogens
Calcium cyanamide, CaCN2, reacts with water to form calcium carbonate and ammonia; CaCN2(s)+3H2O(l)-->CaCO3(s)+2NH3(g). a) How many grams of water are needed to react with 75.0 g of CaCN2
The dow process isolates magnesium from molten MgCL2. How many moles of electrons are required to convert 54.7g of magnesium
How many moles of carbon monoxide are needed to produce 48.0 L of hydrogen gas according to the following reaction at 0 C and 1 atm carbon monoxide (g) + water (l) ------carbon dioxide (g) + hydrogen (g)
A container of gas at 760 mmHg and 20 degrees C is heated to 40 degrees C. What is the new pressure in mmHg?
a toxicologist studying mustard gas, S(CH2CH2Cl)2, prepares a mixture of 0.675 M SCl2 and 0.973 M C2H4 and allows it to react at room temperature (20.0 c) at equilibrium S(CH2CH2Cl)2 = .350 M. calculate Kp
When X-rays with ? = 1.937 Å are used, the second-order Bragg reflection from a set of parallel planes in a(n) cesium crystal is observed at an angle
Phosgene decomposes by the reaction COCL(g) CO(g) + Cl2 K2=8.3x10^-4 (at 360C) When 5.00 mol of COCL2(g) are placed in a 10.0 L flask, find the quilibrium concentration of COCL2, CO and CL2 using the follow steps
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