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At equilibrium, the flask containing the reacting mixture
Ni(s) + 4 CO(g) --> Ni(CO)4(g)
contains 232 torr CO, 1240 torr Ni(CO)4, and 1.82 g Ni at 510°C. What are the Kc and KP for this reaction
Consider the following thermochemical equations : 8Mg(s) + Mg(NO3)2(s) ? Mg3N2(s) + 6MgO(s) ?H°rxn = -3884 kJ Mg3N2(s) ? 3Mg(s) + N2(g) ?H°rxn = +463 kJ 2MgO(s) ? 2Mg(s) + O2(g) ?H°rxn = +1203 kJ Use the above equations to calculate the ?H°f (in k..
a balloon is filled to a volume of 7.00 times 10^2 mL at a temperature of 20.0 degrees celcius. the balloon is then cooled at constant pressure to a temperature of 1.00 times 10^2 K. what is the final volume of the balloon?
Compare the volume of 1.0 g of bromine, Br2, as a solid, liquid, and gas. The density of solid bromine just below the melting point of -7°C is 3.2 g/mL, of liquid bromine at 25°C is 3.1 g/mL.
The protein needs to be in 1X buffer and in a total volume of 0.100 mL. You are given a 5mg/mL protein solution, a 20X sample buffer, and distilled water. How much of each wuld you mix together to make the required volume?
Saturated sodium chloride. describe what happens when 12 M HCl is added to saturated (5.4 M) NaCl. Calculate [Cl-] in the original solution and after the addition of the 12 M Hcl (before any precipitate forms).
Calculate the amount of heat liberated (in kJ) from 375 g of mercury when it cools from 89.2°C to 15.7°C
prepared by dissolving 33.2 g of the compound in sufficient water to form 250 mL of solution. The solution has an osmotic pressure of 1.2 atm at 25 °C. What is the molar mass (g/mole) of the compound?
What is the rate law for this reaction. What is the value of the rate constant. How many seconds would it take for the total pressure to be 0.7133 atm
When 280. mL of 1.50× 10-4 M hydrochloric acid is added to 125 mL of 1.75 × 10-4 M Mg(OH)2, the resulting solution will be
How can I determine with DRAWINGS or DIAGRAMS the composition of a phase, and the amount of the phases in a mixed phase region?
The minimum energy needed to eject an electron from a sodium atom is 4.41 * 10^-19 J What is the maximum wavelength of light, in nanometers, that will show a photoelectric effect with sodium
Calculate the final temperature of 204 mL of water initially at 35 degrees C upon absorption of 18kJ of heat.
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