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When 26.5 grams of a substance absorbs 40.1 J of heat, the temperature of the substance increases from 27.0oC to 68.3oC. What is the specific heat of the substance?
25.7 J/g . oC62.5 J/g . oC-3.66 x 10-2 J/g . oC-25.7 J/g . oC3.66 x 10-2 J/g . oC
Balance the equation using the smallest possible integers. Also determine the sum of the coefficients of the reactants?
Titration of 664 mg of a pure organic carboxylic acid, H2A, showed a rapid change in pH at 40.00 mL and at 80.00 mL of 0.100 M NaOH titrant. When 40.00 mL of NaOH was added, the pH was 5.85, and at 60.00 mL of NaOH the pH was 8.08. What is the mol..
he temperature of 55.6 grams of a material decreases by 14.8 degrees C when it loses 3080 J of heat. What is its specific heat?
what is the boiling point of a solution of 30.20 g of ethylene glycol hoch2ch2oh in 88.40 g of
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One thousand kg/h of an ethanol/methanol stream is to be separated in a distillation column. The feed has 40% ethanol and the distillate has 90% methanol. Eighty percent of the methanol is to be recovered as distillate. Determine the % methanol in ..
In the Ritalin Synthesis, why is p-PhLi (phenyl lithium) used instead of cuprate? What does cuprate do? And why doesn't the alkyllithium add twice
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When 3 methyl 1 butane reacts with Hbr, two alkyl halides are formed: 2 bromo 3 methylbutane and 2 bromo 2 methyl butane. Propose a mechanism that explains the formation of these products.
if 1 mole of a van der waals gas for which it might be shown that nbspspread out is o thermally from a volume of two
What is the animal's initial radiation exposure in curies? b. If all of the energy from the emitted alpha particles is absorbed by the animal's tissues, and if the energy of each emission is 7.77 x 10^-12 J
Magnesium is used in lightweight alloys for airplane bodies and other structures. The metal is obtained from seawater in a process that includes precipitation, neutralization, evaporation
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