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Depict skeletal structure of major organic product of 1-methylcyclopentene treated with br2 as well as h20. cis or trans?
Ammonia and hydrogen chloride gases react to form solid ammonium chloride. A 10.0 L reaction flask contains ammonia at 0.483 atm and 22°C, and 169 mL of hydrogen chloride gas at 7.50 atm and 271 K is introduced.
A 0.24ml sample of a weak acid with an unknown pKa was combined with 12.0ml of a 3.20M KOH and the resulting was diluted to 1.500L. The measured pH of the solution was 3.75. What is the pKa of the weak acid
What is the enthalpy change when 1 mole of ammonia gas is decomposed into its elements?
(0.0250 moles)(5 moles of the H20 / 1 mole of copper sulfate pentahydrate)(18.01 g/mol of H2O) = 2.25 grams, on top, in order to achieve the real molarity of CuSO4 when in solution?
The melting point range is measure for two materials (A and B). For material A, the melting point range is from 58.5 C to 64.0 C whereas for material B, the melting point range is from 87.0 C to 89.0 C. Which material, A or B, is more pure
Draw clear representations of the two chair conformations of trans 2-methylcyclohexanol. Circle the hydrogen atoms which are anti to the hydroxyl group.
Express you answer as a chemical equation. Identify all of the phases in your answer.
A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The dealer heated the coin, which weighed 18.0 g to 100°C in boiling water and then dropped the hot coin into 26.5 g of water at T = 16.5°C
The mass of the crucible plus CaO was 26.7134 g). What is the concentration of Ca (40.078 g/mol) in the river water in units of part per thousand (ppt) (by mass), assuming the river water has the same density as pure water
Assuming that the solute consists entirely of NaCl (over 90% is), calculate the osmotic pressure of seawater at 20 degrees C
Examine the bioenergetics of the synthesis of glutamine synthesis from alpha ketogluterate via glutamate synthase or glutamate deyhydrogenase
the R enantiomer and 19.0% of the S enantiomer, what is the enantiomeric excess of the mixture?
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