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A domestic water-carbonating kit uses steel cylinders of carbon dioxide of volume 250 cm3. They weigh 1.04 kg when full and 0.74 kg when empty. What is the pressure of gas in the cylinder at 20 degrees C?
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It takes 37.8 mL of 0.2114 M NaOH to neutralize 19.3 mL of an oxalic acid solution with an unknown concentration. Calculate the actual concentration of this oxalic acid solution. Don't forget to look at the balanced equa ...
A dessert contains 131.55 g of vanilla ice cream, 90g of fudge sauce, and 40.0 g of nuts. What is the total weight, in pounds, of the dessert?
When .514g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises from 25.8 degrees C to 29.4 degrees C. Find delta E(rxn) for the combustion of biphenylin kJ/mol. The heat capacity of the ...
Name five types of radiation. Describe, in table form, their mass number, charge, and identity.
For the equilibrium 2IBr( g )?I2( g )+Br2( g ) Kp =8.5×10-3 at 150 °C. Part A: If 2.7×10-2 atm of IBr is placed in a 2.0-L container, what is the partial pressure of IBr after equilibrium is reached? Express your answer ...
Carbon-carbon single bonds in organic molecules have energies about350. kJ/mol. What is the corresponding wavelength? Could UV lamps(248 nm) be used to break these bonds?
What is the mass of NaOH present in grams, given that a 100. mL solution has a concentration of 0.125 M?
Suppose 1.7 g of zinc is treated with 6.2 g of pure hydrogen chloride. What is the maximum mass (in g) of hydrogen gas that can be produced?
Magnesium metal(0.100 mol) and a volume of aqueous hydrochloric acid that contains0.500 mol of HCl are combined and react to completion. How manyliters of hydrogen gas, measured at STP, are produced? Mg(s) + 2HCl(aq) --- ...
In the spring time, a background ozone level of 29.0 ppbv was measured in Edmonton. Convert the mixing ratio of 29.0 ppbv ozone to units of molecules cm-3. Assume a pressure of 1.108 atm and a temperature of 12.5 ºC.
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