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separation and purification scheme 50% toluic acid, 40% fluorene, 10% 1,4-dibromobenzene
The activation energy for a given reaction is 87 kJ/mol. What is the ratio of the rate constants for this reaction when the temperature is decreased from 37 °C to 15 °C
The sample is not completely thermally decomposed in the procedure. Will the mole ratio of CaO to CO2 be too high or too low? Explain
What masses of calcium sulfate and phosphoric acid can be produced from the reaction of 1.0kg calcium phosphate with 1.0kg concentrated sulfuric acid (98% H2SO4 by mass)?
If 3.50 g of H2S are used in the above reaction, what will be the theoretical yield of water in grams?
What type of forces must be overcome when solid I2 is dissolved in dissolves in methanol, CH3OH? What type of forces must be disrupted between methanol molecules when I2 is dissolved?
Your observations should reveal a difference in at least one property between sodium benzoate and benzoic acid. What property was that, and what observation will reveal the difference?
What is the volume of 295 mL of a sample of gas at 52.0°C and 710. mm Hg if the conditions are adjusted to STP
Which of the following are more soluble in acidic solution than in pure water. Ca(OH)2 Mg3(PO4)2 PbBr2
Blood alcohol content (BAC) is often reported in weight-volume percent (w/v%). For example, a BAC of 0.08% corresponds to 0.08 g CH3CH2OH per 100 mL of blood. In Ontario, and the rest of Canada, the maximum legal BAC for fully licensed drivers is ..
what is the volume of 1 mole of Helium gas when the pressure is 1.47 atm and the temperature is 287 K.
A 4.00 g sample of the metal nitrate M(NO3)2, in which M is an unknown metal was dissolved in water and treated with excess aqueous sodium sulfate. The sulfate salt that is formed in the reaction weighed 3.318 g. Determine the identity of the meta..
which of the following is NOT a vitamin that is used by cells to produce a cofactor requires by alpa-ketogluterate dehydrogenase
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