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Explain why it is unwise to use column chromatography on compounds having boiling points below about 150 °C (760 torr)
Calculate the number of moles of H2O that will be produced by the reaction of .530 moles of solid Al(OH)3 with excess aqueous HClO3
how would you prepare pentanenitrile from butanoic acid? show the reaction steps indicating the appropriate reagents
Consider the following equation: 2HF (g) H2 (g) + F2 (g) k+ 1.00 x 10 ^-2. Given that 1.00 mol of HF(g) ,0.360 mol of H2(g) , and 0.750 mol of F2(g) are mixed in a 5.00-l flask, determine the reaction quotient,Q Q=?
Draw the product that is formed when 1-pentyne is treated with an excess of hydrogen gas and a nickel catalyst.
What is the pressure of the excess gas when the reaction is complete if 5g of H2 and 10g of O2 react in a 15L container at a constant temp of 25 degrees C? I understand
Calculate the heat of vaporization of water at 25 degree celsius. the specific heat of water may be taken as 4.18 J/K/g. the heat capacity of water vapor at constant pressure in this temperature range is 33.5 J/K/mol
Cisplatin, an antitumor ingredient, has the formula Pt (NH3)2Cl2. What is the molar mass of cisplatin? Calculate the mass percent of platinum present in cisplantin.
0.982 g sample of KHP (this is not potassium-hydrogen-phosphorus) is dissolved in water and titrated to the equivalence point with 26.45 mL of NaOH solution. What is the concentration (M) of the NaOH solution
Draw the oxygen dissociation curves for myoglobin and hemoglobin on the same graph. lable axes, give units and provide key values. Concisely interpet and explain the 2 curves in terms of the specific structure and function of the two molecules.
In a dry cell, MnO2 occurs in a semisolid electrolyte paste and is reduced at the cathode. The MnO2 used in dry cells can itself be produced by an electrochemical process of which one half-reaction is shown below.
Baking soda decomposes into sodium carbonate, water vapor and carbon dioxide. how many liters of gas will be produced at 155 C and 753 torr by the complete decomposition of 3.2 g of sodium bicarbonate?
a cylinder measuring 5.7 cm wide and 6.8 cm high is filled with gas. the piston is pushed down with a steady force
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