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Methane and propane are two components of natural gas burned in Bunsen burners. If a methane molecule travels at 675 m/s from a gas jet, how fast does the propane molecule travel?
a. 1430 m/sb. 319 m/sc. 407 m/sd. 1120 m/s
When a metal was exposed to light at a frequency of 3.49× 1015 s-1, electrons were emitted with a kinetic energy of 3.60× 10-19 J. What is the maximum number of electrons that could be ejected from this metal by a burst of light
CaC2 + 2 H2O --> Ca(OH)2 + C2H2 If 100. g of CaC2 and 100. g H2O are mixed, what is the theoretical yield (in grams) of C2H2 that can be produced
Water contained in a piston-cylinder assembly undergoes two process in series from an initial state where the pressure is 10 bar and the temperature is 40°C. at first, the water is cooled as it is compressed at a constant volume to 150°C.
The temperature of a 2.25 L sample of gas decreases from 35C to 20C. What is the new volume?
calculate the moles of oxygen gas produced fro 4.40mol H2O2. 2H2O2(i) ---->2H2(g) + O2(g) Express your answer with the appropriate.
during one of the processes at the plant. The two liquids are blended until a specific gravity of 1.445. Determine the mole percentage of the two components in the blend.
Write the chemical equation for the formation of CH from H and C atoms. Lone pairs do not need to be included. Then Using the table of bond energies determine the ?H for the above reaction.
Specific heat of ice: 2.09g*c Specific heat of liquid water: 4.18j/g*c Enthalpy of fusion: 334j/g Enthalpy of vaporization: 2250j/g
Gaseous hydrogen has a density of 0.0899g/L at 0 degrees Celsius. How many liters would you need if you wanted 1.0078 g of hydrogen?
Treating 1-butanol with sulfuric acid establishes an equilibrium with 1-butyl bisulfate and water as shown.
An unknown carbohydrate compound has the empirical formula CH2O. A solution consisting of 0.515 g of the carbohydrate dissolved in 1.717 g of acetic acid freezes at 8.8°C
Explain why the major product of bromination of vanillin was 5 bromovanillin and not 2 bromovanillin or 6 bromovanillin.
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