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A welding cylinder contains argon and carbon dioxide. the Total pressure of the cylinder is 2500.0 torr. The argon is at a pressure of 0.890 atm. what is the pressure of the carbon dioxide in the cylinder in torr?
A sample of rainwater is observed to have a pH of 7.4. If only atmospheric CO2 at 380 ppm and limestone dust are present in the atmosphere to alter the pH from a neutral value, and if each raindrop has a volume of 0.02 cm3, what mass of calcium is..
The isomerization of methyl isocyanide, CH3NC -> CH3CN, follows first-order kinetics. The half-lives were found to be 161 min at 199 degrees celcius and 12.5 min at 230 degrees celcius. Calculate the activation energy for this reaction.
what differences would you expect to observe. Would the order of reaction change with respect to the dye? Would the rate constant change
Suppose that you are going to collect H2 gas produced from the reaction of an acid with a metal such as zinc. This reaction gives off heat, so the tem perature of the solution will increase as the reaction proceeds.
Determine the molarity of Fe+3 ions and SO4-2 ions in a solution prepared by dissolving 48.05g of Fe2(SO4)3 in enough water to make 800.0mL of solution.
Would you help me to determine the term symbols allowed by the Pauli exclusion principle for the electron configuration 3d2 . Order the terms from lowest energy to highest.
Describe the bonding in SeO2 in valence bond terms. Note whether or not there is delocalized bonding and explain how molecular orbital theory can be useful here.
An empty 10L flask at 1000 C is filled with 4.6 g of NO2 (g), and allowd to come to equilibrium according to the above reaction. Kc = 4.72. what will the total pressure in the flask be once equilibrium is reached?
10 mg of magnesium metal and 30 ml of hydrochloric acid are added to 300 ml of water and hydrogen gas is eveloved. The reaction is as follows: Mg + 2HCl -> H2 + Mg2+ (aq) + 2Cl- (aq). Calculate the limiting reactant.
Raw milk sours in 4.0 hours at 28 degrees celcius but takes 48 hours to sour in a refrigerator at 5 degrees celcius. Calculate the activation energy for the souring of milk?
It is stated that more than one unit cell can be chosen for a structure. If they represent the same structure, however, the unit cells must have the same types of atoms
A biochemical engineer isolates a bacterial gene fragment and dissolves a 19.8 mg sample of the material in sufficient water to make 35.4mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C.
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