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25.0 mL of ethanol (density = 0.789 g/mL) initially at 5.4°C is mixed with 34.6 mL of water (density = 1.0 g/mL) initially at 25.3°C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?
when 2.55 g of an unknown weak monoprotic acid ha molar mass 85.0 gmol is dissolved in 250.0 g of water the freezing
How much heat is required to convert 5.0 g of ice at -10.0 ?C to liquid water at 15.0 ?C? (Assume heat capacities are independent of temperature.)
What is the synthesis for the following compunds from simple organic precursors? Important Using original syntheses, not from published works.
Calculate the amount of solution (g or mL) that contains each of the following amounts of solute. Express the answer to two sig fiugres and include the appropriate units.
Clearly Label the IR Spectrum of Benzoic Acid and assign the following peaks: Broad 3300-2500cm-1 3020 cm-1 1682cm-1 2. Clearly Label the IR Spectrum of Anisaldehyde and assign
German physicist Werner Heisenberg related the uncertainty of an object\'s position (?x) to the uncertainty in its velocity ?v.The mass of an electron is 9.11× 10-31 kg.
A car gets 9.2 kilometers to a liter of gasoline. Assuming that gasoline is 100% octane which has a specific gravity of .69, how many liters of air (21% oxygen by volume at STP) will be requiered to burn the gasoline for a 1250 km trip? assume com..
A certain laser uses a gas mixture made up of 9.00 g HCL, 2.00g H2, and 165.0g Ne. What pressure is exerted by the mixture in a 75.0 L tank at 22 degree C?
A 1.00 L buffer solution is 0.250 M in HF and 0.250 M in NaF. Calculate the pH of the solution after the addition of 100.0 mL of 1.00 M HCl. The Ka for HF is 3.5E-4
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.
Outline a detailed scheme utilizing extractions that he can use to separate the mixture back into the pure components before the professor finds out.
What is the percent ionization of a solution prepared by dissolving 0.0223 mol of chloroacetic acid, HC2H2O2Cl) in 1.80 L of water?
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