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An aqueous solution containing 36.0 g of an unknown molecular (non electrolyte) compound in 159.7 g of water was found to have a freezing point of -1.2 degrees celcius. Calculate the molar mass of t
What is the boiling point of a solution of 0.25g of a nonvolatile solute (molar mass 85 g/mol) dissolved in 12g Benzene. Kbp for benzene = 2.53 (oC/m), Normal boiling point 80.10 oC.
How many grams of a sugar (MW 180 g/mol) must be dissolved in 50 mL of aqueous solution to produce an osmotic pressure of 250 toor. The sugar does not dissociate.
Draw the structure of the aromatic organic product formed from the reaction of the following compound with
Give the products (if any) expected from the treatment of cyclooctene with ozone followed by aqueous hydrogen peroxide. Do not draw any byproducts.
Give the products (if any) expected from the treatment of 2-methyl-2-pentene with ozone followed by aqueous hydrogen peroxide. Do not draw any byproducts.
Draw the structure of the organic product formed in the reaction of m - cresol with sodium hydroxide
Put the following acids in the order of increasing acidity and please explain reasoning CCl3COOH, CH3COOH, CF3COOH
when a current of 308 mA is used for 8h, what volume of fluorine gas at 298 K and 1 atm can be produced from a molten mixture of potassium and hydrogen fluoride
Ocean water typically contains 35 moles of salt ions dissolved in each 1000 moles of water. Assuming that ocean water has the same density as pure water convert this ratio into a molarity and calcul
For a protein with a molar mass of 1 x10 6 u calculate the molar concentration required to obtain an osmotic pressure of 10 matm at 25 degrees C
A 500.0 mL sample of 0.200 M sodium phosphate is mixed with 400.0 mL of 0.237 M barium chloride. what is the mass of the solid produced
what volume of 0.100 M NaOH is required to precipitate all of the nickel (ll) ions from 150.0 mL of a 0.162 M solution of Ni(NO3)2
Draw all possible mesomeric structures of the carbocationic intermediate in the chlorination of benzoic acid. Explain why the main product is m-chlorobenzoic acid.
To make 1.50 L of 0.100 M NaCl from a 3.13 M stock solution,you would need to take ( blank) mL of the stock solution and add (blank) mL of water
you have 259 mL of a 1.25 M potassium chloride solution, but you need to make a 0.50 M potassium chloride solution. how many milliliters of water must you add to the original 1.25 M solution to make
How many grams of H2O are produced when 10.0 g of Phenol, C6H6O, reacts with 20.0 g of O2 in the following reaction
the compound sucrose is commonly known as table sugar. the chemical formula of sucrose is C12H22O11. How many hydrogen atoms are resent in 1.50 x 10^-4 mol of sucrose
The type of enzyme regulation where a regulatory molecule binds to the enzyme and changes the shape of the active site is called
Some enzymes are produced as zymogens because a) the reactions they catalyze are undesirable at the site of production
What is the molar mass of a gas which occupies 32.9 L at 82oC under 1.124 atm of pressure and has a mass of 23.7 grams
Silver chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12x10^-12. What is the solubility (mol/L) of silver chromate
What is the limiting reactant when ammonium nitrate is synthesized from its elements in their standard states and 1.0 L of all reactants are used at a constant pressure and temperature
The active site of an enzyme is a small portion of the enzyme molecule. What is the function of the rest of the large molecule
Which of the following statements concerning fatty acids is incorrect. Fatty acids are rarely found free in nature