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what is the energy of a single UV photon and mole of UV photons having a wavelength of 25 nm?
In the 1980s, there was an international agreement to destroy all stockpiles of mustard gas, ClCH2CH2SCH2CH2Cl. When this substance contacts the moisture in eyes, nasal passages, and skin
Write the chain propagation steps for the formation of dichloromethane in the chlorination of methane
Your job is to use the stock solution to prepare 4 solutions with concentrations of 10 ppm, 5 ppm 2.5 ppm and 1.0 ppm. Describe how you would make these four solutions and show all calculations.
Phosphoric acid reacts with magnesium hydroxide to produce magnesium phosphate and water via the following reaction: ?H3PO4 + ?Mg(OH)2->?Mg3(PO4)2 + ?H2O
at room temperature more of the collisions have sufficient energy to produce a reaction. the piece of zinc needs to be bigger at 4 deg c.
Normal fasting levels of blood glucose in human are around 800mg/L. What is the molarity of glucose in the bloodstreem
I2+6H2O yields 2IO3-+12H+ where and how many electrons are needed to balance this equation
Arrange the four compounds below in order of increasing volatility.
Draw the structure of each product obtained when the given compound is treated with the reagent specified below: a. CH3C(=O)CH2CH2C(=O)OCH3 (1,4-dioxacyclohexane compund) + HBR (reagent)
A reaction mixture in a 10.00-L flask contains 0.42 moles each of hydrogen and fluorine gases plus 0.15 moles of HF. What will be the concentration of H2 when this mixture reaches equilibrium
When 1 of a fuel is burned at constant pressure, it produces 3452 of heat and does 13 of work. What is the value of delta H for the combustion of the fuel?
Calculate the formula weight of CuSO4 . Use the following atomic weights: Cu is 63.5463 g/mol, S is 32.0666 g/mol, and O is 15.99943 g/mol. Your reported answer should have the correct number of significant figures and units.
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