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When 0.583 g of neon is added to an 800cm^3 bulb containing a sample of argon, the total pressure of the gases is found to be 1.17 atm. at a temperature of 295 Kelvin. Find the mass of the argon in the bulb.
Sodium ions are found int eh extraellular fluid in a concentration of 150mM. How many grams per liter is this?
methane and hydrogen sulfide form when 36g H2 reacts with carbon disufide. Calculate the percent yield if the actual yield of CH4 is 69.8
The weight of an object is the product of its mass, m, and the acceleration of gravity, g (where g=9.8 ~\rm m/s^2). If an object's mass is m=10.~\rm kg, what is its weight
Calcium phosphate, silicon dioxide, and coke may be heated together in an electric furnace to produce phosphorus, as shown in the following equation: 2Ca3(Po4)2+6SiO2+10C=6CaSiO3+10CO +P4
What is the minimum external voltage one must supply in order to perform the electrolysis of molten CaCl2. Show work, explain, and suggest a means for supplying this energy.
How would you prepare 1.000 L of a 1.000 mole L?1, pH 7.50 Tris-aka, tris(hydroxymethyl)aminomethane-buffer? You have pure Tris?HCl, {(HOCH2)3NH+,Cl?}
Multiple choice questions in free energy change and What is the free energy change in kJ/mole?
Write a balanced equation including states of matter for the reaction of Zn(H2O)4 2+ in aqueous NaCN. You can assume sodium is a secator ion and does not need
what is the relevance of half filled and completely filled orbitals in ionisation enthalphy ditermination.
Write an equation for this reaction? which species acts as the nucleophile? Which species acts as the electrophile?
3.5 g of a hydrocarbon fuel is burned in a vessel that contains 250. grams of water initially at 25.00 C. After the combustion, the temperature of the water is 26.55 C.
The compound butane consists of only C and H. If 0.531g of butane is burned in oxygen and produces 1.61g of CO2 and 0.823g of H2O, what is the empirical formula of butane
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