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The heat of vaporization of isopropyl alcohol, C3H7OH, is 42.1 kJ/mol. How many grams of water at 0oC could be frozen to ice at 0oC by the evaporation of 395 grams of isopropyl alcohol? The heat of fusion of ice is 6.01 kJ/mol.
suppose a 0.100 M solution of each of the following substances is prepared. Rank the pH of the resulting solutions from lowest to highest: KF, NH4I, HBr, NaCl, LiOH.
A 0.150 M Na2SO4 Has [Ag^+] = 9.7x10^-3 M. What is the value of Ksp for Ag2SO4 obtained with these data
Molecular Formula of a Compound from Percent Composition and Molar Mass, What is the molecular formula of a compund that contains 42.87%carbon, 3.598% hydrogen, 25.00% nitrogen
what are possible sources of error that might lead to an erroneous determination of the concentration of the acetic
An 80.0-gram sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was done by the system and its internal energy increased by 7565 J. What is the specific heat of the gas
Calculate the number of 5.70m NaOH must be added to 666 ml of a buffer that contains .0205m C2H4O2 and .0260m C2H3NaO2 to increase the ph to 5.75.
what is the theoretical yield of carbon dioxide when 56.0 g of methane is burned in a excess of oxygen, according to the equation CH4 2 )2 ->CO2 ,2H2o.
A solution of 0.10 M sodium acetate is mixed with a solution of 0.10 M acetic acid (Ka = 1.8*10^-5). When equal volumes of the two solutions are mixed together the resulting mixed has a pH of:
Which type of bonding does Sr form upon solidification. metalic, molecular, ionic, covalent compund
Would the following procedural errors causes an increase, a decrease, or no change in your calculated molecular weight? Indicate clearly the reasoning in each case.
Write balanced equation for the following reaction of aqueous of feCl3, and Mg3(po4)2 to give FePo4 and MgCl2. Molecular Equation. Ionic Equation. Net ionic equation. What the name of this type of reaction. Which ions are spectator ions
calculate (Triangle H degree R) for the following reaction- H2S(g) + (3/2)O2(g) ---> SO2(g) + H2O(g)
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