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Presume that 1.02 g of rubbing alcohol (C3H8O) evaporates from a 57.0 g aluminum block. Explain if the aluminum block is initially at 25, Explain what is the final temperature of the block after the evaporation of the alcohol? Presume that the heat required for the vaporization of the alcohol comes merely from the aluminum block as well as that the alcohol vaporizes at 25.
Suppose that 0.570 mol of methane is reacted with 0.720 mol of fluorine forming CF4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released
How much energy, in joules, must be absorbed to convert to Na^+ all the atoms present in 1.00mg of gaseous Na. The first ionization energy of Na is 495.8kJ/mol.
an office heater puts out 2070 btus british thermal units of energy in the form of heat per hour. given that 1 btu
What are the [H3O+] and the pH of a propanoate buffer that consists of 0.47 M CH3CH2COONa and 0.12 M CH3CH2COOH? Ka of propanoic acid = 1.3 10-5.
balance the forward reaction with whole-number coefficientsalpha ch3ohl beta o2g---gtgamma co2g delta h2olgive your
what would happen to the average kinetic energy of the molecules of a gas sample if the temperature of the sample
1.22 in 1994 the united states produced 89.20 billion pounds of sulfuric acid. the density of this sulfuric acid was
How many grams of aluminum hydroxide are obtained from 18.2g of aluminum sulfide?
You are asked to prepare a standard solution of 10.0 mM of valine at pH 5.35 for a biochemistry experiment. The pI of valine is 5.96. What percentage of the valine in the solution is present as the anion
an insulated container holds 475g of molten indium (liquid) at a temperature of 276 C. if 511g of solid indium are warmed to the melting point (157 C) and than dropped into molten indium, the system comes to thermal equilibrium at the temperature ..
Calculate the change in entropy when 54 ml of hot (95 C) water is added to 90 ml of cold (5 C) water is a closed cup, given that Cp (H2O, l) = 75.5 J/molK
List five food product would give a positive iodine-starch test for carbohydrate mention somthing beside potato
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