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Given the reaction : 2C(s)+H2(g)+230 KJ à C2H2(g) the reactants have 60 KJ potential energy and the activation energy of the forward reaction is 300 KJ Draw a potential energy diagram for this reaction
1. How large (in kg) an oxygen candle (KClO3) would be needed to supply 8 people with enough oxygen for 24 hours on a small submarine. The average person needs .84 kg of O2 per day.
What volume of 0.200 M HCl must be added to 250.0 mL of 0.300 M sodium mandelate (Ka for mandelic acid = 0.0004) to produce a buffer solution with a pH = 3.37
Attribute a percent yield of less than or more
Europium (Europium is a chemical element with the symbol Eu and atomic number 63 )crystallizes in a body-centered cubic lattice compute the unitcell edge length in pm if The density of Eu is 5.26 g/cm3..
Benzoic acid is much stronger than the weak acid phenol consequently benzoic acid reacts with the weak base bicarbonate while phenol does not. using a schematic show a scheme for the total separation of the three compounds in a mixture of benzoic ..
Give the structure of a hydrocarbon that has six carbon atoms and three vinylic hydrogens and two allylic hydrogens
A 1.678 g sample of a component of the light petroleum distillate called naphtha is found to yield 5.143 g CO2 (g) and 2.456 g H2O (l) on complete combustion. This particular compound is also found to be an alkane with one methyl group attached to..
The mass used to prepare Na2S2O3 solution was erroneously calculated too low. Will the reported molar concentration of the Na2S2O3 be too high, too low, or unaffected? Why?
Give the structure of the major and minor organic products formed when HBr reacts with (E)-4,4-dimethyl-2-pentene in the presence of peroxides.
Of the three options given below, select the best acid as a starting point for the preparation of this buffer in one sentence explianing your reasoning a (HOCH2)3CH3Cl 8.51 x 10-9 CH3CO2H 1.74 x 10-5 NaH2PO4 6.31 x 10-8
Estimate the amount of product that was lost in the filtrate, assuming that the volume of the reaction mixture was 1.0 mL when you collected the product by vacuum filteration.
The two naturally occurring isotopes of hydrogen are 1H (atomic mass = 1.00783 amu; abundance 99.9885%) and 2H (atomic mass = 2.01410 amu; abundance 0.0115%)
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