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Nuclear fuel is U-235, an alpha emitter with a half-life of 703 million years. How long would it take for the amount of U-235 to reach one-sixteenth of its initial amount?
a step by step answers for those Question please. Please be brief. What is the PH of a buffer prepared by combining 25mL of 0.1M nitrous acid with 25mL of 0.1M sodium nitrite?
what are some difference or similarity in the type of inhibition caused by heat, acid or base and heavy metal ions on enzyme activity.
ammonia nh3 kb 1.8 x 10-5 is added to 100 ml of water at room temperature. the vapor pressure of the water above the
Explain which distilation method (fractional or simple) would be most appropriate to seperate hexanes and dichloromethane.
A 2.983 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution. To this solution was added 1.910 grams of KI and 50.00 mL of a 0.00894 M KIO3 solution.
What is the percent by mass of oxygen in a gaseous mixture whose molar composition is 0.500% CO2 and 99.500% air. The composition of air is 21% mole O2, 79% mole N2, and has an average molar mass of 29.0 g/mol.
Identify the catabolic pathways used by the following bacteria : pseudomonas, lactobacillus, alcaligenes
The decomposition of KClO3 proceeds spontaneously when it is heated. Do you think that the reverse reaction, the formation of KClO3 from KCl and O3 is likely to be feasible under ordinary conditions
Calculate the empirical formula, Molecular weight, and molecular formula of the compound when an organic compound has C=55.8% and H=7.03%. A 1.500g sample was vaporized collected over H2O and found to occupy 0.500L at 100C and 764 mmHg. (vapor pre..
calculate the concentration of i- in a solution obtained byshaking 0.19m ki with an excess of agcls? how do you do this
Calculate the mass of carbon dioxide released when 255 g of copper carbonate [molar mass = 123.5 g/mol] is heated (assuming that the reaction goes to completion). The molar mass of CO2 is 44.0 g/mol.
Grignard Synthesis of malachite Green Find the theoretical yield for generation of Gringard reagent AND malachite green. Show calculation Here was the procudure
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