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The preliminary concentration for iodine is 0.08 mole, if the reaction rate at this concentration was 36 seconds. Explain what would the reaction rate be if the concentration of iodine is doubled to 0.16 mole?
Electromagnetic radiation has an energy of 926 J. The wavelength of this radiation is 856 nm. How many photons are required to generate this energy?
How much of each of the following substances would you add to water to prepare 1.50 L of a 0.90 M solution? NiCl2 from the salt NiCl2·6 H2O
Consider the diffusion of dopant element A into crystalline wafer. The dopant rich coating is considered as a large source of A relevant to the amount of A diffused, so that the surface concentration CAs can be considered a constant.
Ammonia gas at 223°C and 90. atm flows into a reactor at a rate of 530. L/min. Carbon dioxide at 223°C and 44 atm flows into the reactor at a rate of 600. L/min. What mass of urea is produced per minute by this reaction assuming 100% yield?
Determine de yield or recovery percent in the synthesis of an adduct made with 0.10 mL of furan and 0.20g of maleic anhydride.
concentrated sulfuric acid 18.4-molar h2so4 has a density of 1.84 grams per milliliter. after dilution with water to
The enthalpy of the reaction DH = -484 kJ. What is the enthalpy change (in kJ) when 1 grams of hydrogen are burned
How many grams of ammonia can be produced ? How much of the excess reactant is left over?
When we go down a group, electron affinity should become more positive (less energy released), since the electron is added at increasing distances from the nucleus.
Exactly 100 mL of 0.10 M nitrous acid (HNO2) are titrated with a 0.10 M NaOH solution. Calculate the pH for the following. (a) the initial solution
Assuming that the calorimeter absorbs only a negligible quantity of heat and that the density of the final solution is 1.0 g/mL, calculate the enthalpy change per mole of BaSO4 formed.
An unknown gas is placed in a 1.500L bulb at a pressure of 356mm Hg and a temperature of 22.5C, and is found to weigh 0.9847g. What is the molecular mass of the gas
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