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a calculate the standard enthalpy of formation of gaseous diborane b2h6 using the following thermochemical information4
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the aromatic hydrocarbon cymene c10h14 isfound in nearly 100 species and fragrances including corianderanise and thyme
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you add 50ml of 20 m calcium nitrate solution to 50ml of 0500m sodium hydroxide solution excess reageant and filter out
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what is the maximum energy that can be extracted as a heat and bnon-expansion work when 10 kg of natural gas is burned
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saccharin c7h5no3s is sometimes dispenced in tablet form ten tablets with a total mass of 05894g were dissolved in
1 what is the percentage strenght of a solution prepared by dissolving 60 g of potassium chloride in 150 ml of water2
which of the compounds i zinc acetate znch3co22 ii barium sulfate baso4 iii ironiii hydroxide feoh3 isare soluble in
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
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we have been assuming that the change in u at a constant t is 0 for this problem do a derivation that provesdudpt 0 for
raiderium cv has three naturally occurring isotopes raiderium is 74655 44cv which has an atomic mass of 43064 amu 24958
magnesium ions can be precipitated from seawater by the addition of sodium hydroxide how much sodium hydroxide in grams
an aqueous solution known as ringers lactate is administered intravenously to trauma victims suffering from blood loss
in a acid-base titration 3365 ml of an 0148 m hcl solution were required to neutralize 2500 ml of a naoh solution what