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An unknown gas composed of a diatomic molecule effuses at a rate that is only 0.355 times as fast as that of oxygen gas at the same temperature. Identify the diatomic molecular and support your answer by determining the molecular mass of the diatomic molecule.
For the reaction 2CH4(g) +3Cl2(g) -> 2CHCl3(l) + 3H2(g), the standard enthaly of change of reaction = -118.6KJ. The standard enthalpy of change of reaction
The Kd of methylene chloride/ water of an organic compound is 2.50 A solution is made my dissolving 48 mg of the compound in 10 ml of H2O. How many mg of the compound will be extracted using 10 ml of methylene chloride
it absorbs 32.60 kj of heat from its surroundings. what is its final temperature in C (specific heat .9930 J g C for Al)
Sodium formate, HCOONa, is a weak base and undergoes hydrolysis in water. Determine the OH- concentration at equilibrium in a solution
Name and list the functions of the prosthetic group(s) associated with a) HDLs , b) interferons, c) viruses , and d)hemoglobin
When the nuetron to proton ratio in a raditoactive isotope is higher than that required for stability, it main gain greater stability by emitting
If the oven uses microwave radiation of wavelength 12.2 cm, how many photons of this radiation are required to heat 1.28 g of water 1.00°C, assuming that all the photons are absorbed?
Adrenaline is a hormone released in response to physical and mental stress. A solution is prepared with 1.5g of adrenaline in 175g. of CCl4 (Tf= -22.3 degrees celcius and Kf = 29.8 C/m.) The freezing point of the solution was determined experiment..
If (initially) 0.22 mol of Br2 and 0.22 mol Cl2 are introduced into a 1.0 L container at 400. K, what will be the equilibrium concentration of BrCl? Assume the initial product concentration is zero.
What does the structure of isopinocampheol (the product of a hydroboration-oxidation reaction of (1R)-(+)-alpha-Pinene) indicate about the mechanism of the reaction in terms of regioselectivity and stereoselectivity
Find the pH solution & Hydronium ion concentration and What is the pH of a solution of 0.17 M acid and 0.81 M of its conjugate base if the pKa = 8.62?
an alka-seltzer tablet contains 1.916 grams of sodium bicarbonate. using the formula h3c6h5o7 3nahco3-gt nac6h5o7 3h2o
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