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A plot of ln k vs. 1/T for the decomposition of dinitrogen pentoxide yielded a slope = -7.85 x 105 and a y-intercept = 35.2. whats its activation energy
A gas is compressed from 68.2 L to 8.0 L at 0.70 atmospheres? In addition a total of 3300 J of heat are gained from warmer surroundings. What is the change in internal energy in kJ
What is the atomic mass of a metal (M) if 4.50 g of MCl2 produces 4.34 g AgCl in the following reaction? MCl2 + 2 AgNO3 ? 2 AgCl + M(NO3)2
how much aspirin is recovered? Solubility of aspirin in water at 25oC is one gram of aspirin per 300 milliliters of water.
1) Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 166.00pm 2) What wavelength of light would have sufficient energy to ionize the atom
What product results from the reaction of hexyl bromide and sodium ethoxide?
Why is naturally occurring iron non-magnetic except when it is exposed to an external magnetic field (a secondary magnetic force). How is it possible to create a permanent magnet (ferromagnet) from a naturally occurring sample of iron.
100.0 g of nickel at 150 °C was placed in 1.00 L of water at 25.0 °C. The final temperature of the nickel-water mixture was 26.3 °C.
2H+(aq) + 2Br-(aq) + CO2(g) BrO3-(aq) + 5Br-(aq) + 6H+(aq) Rate = k[Br2] Rate = k[BrO3-][Br-][H+]2 (4th order is RARE!) Exp. What is the rate law? What is the value of the rate constant? Why?
A 335 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 628 mmHg. Calculate the moles of Ar present.
a volume of 80.0 ml of h2o is initially at room temperature 22.0 c. a chilled steel rod at 2.00 c is placed in the
Two charged dust particles exert a force of 4.7 10-2 N on each other. What will be the force if they are moved so they are only one fifth as far apart?
Consider a situation in which 161g of P4 are exposed to 176g of O2. A)What is the maximum amount of P2O5 that can theoretically be made from 161g of P4 and excess oxygen
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