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The 45.0 kg mass is now dropped from a height of 1.50 m into a cup containing 125 g of water. The water is initially at 20.0oC. Explain what will be the final temperature of the water? Specific heat of water: 4.184 J g-1 deg-1
What is the Normality of a solution of KOH if 45.18 mL are required to neutralize 0.3 g pure oxalic acid
Write a net ionic equation for the reaction that occurs when cobalt(II) carbonate (s) and excess hydrochloric acid (aq) are combined.
For the point group C3v, does the coefficient for 2C3 operation indicate that you can rotate it twice in one direction 120 degrees so that you end up right where you started
At 50oC, the autoionization constant for pure water, Kw, is 5.47e-14. What is the hydronium ion concentration in pure water at this temperature
A 2kg sample of lead is heated from a temperature of 30 degrees celsius to a temperature of 60 degrees celcius. The specific heat of lead is 128 J/kg degrees celsius. How much heat energy di this sample absorb?
Calculate the equilibrium constant for the reaction below at 25 degrees C. Co(s) + 2 Cr^ 3+(aq) -> Co^2+(aq) + 2 Cr^2+ (aq) given the following thermodynamic information
one of the precursors you need to verify a mechanism is benzaldehyde with the para-hydrogen isotopically labelled as
question what is the side reaction that occurs or what side products are generated during a thiamine catalyzed benzoin
Reactions of Alcohols, Show how ethanol and cyclohexanol may be used to synthesize cyclohexyl ethyl ether using tosylation followed by Williamson ether synthesis.
Heat realsed by combustion of ethyl ether, 1. In earlier times, ethyl ether was commonly used as an anesthetic. It is, however, highly flammable. When 5.0 mL of ethyl ether C4H10 (l), (d=0.714 g/mL) is burned in a bomb calorimeter
when 3-methyl-1 5-pentanediol is warmed with polyphosphoric acid the major product has a molecular formula c6h12o. what
Four aldehydes and four hydrazines were used to explore hydrazone antibacterial activity in a combinatorial technique. How many reactions and antibiotic screenings would have been required to carry out this analysis in a non-combinatorial fashion?
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