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The heat generated in this reaction helps melt away obstructions such as grease, and the hydrogen gas released stirs up the solids clogging the drain. Calculate the volume of H2 formed at 23°C and 1.00 atm if 4.46 g of Al are treated with an excess of NaOH.
how many moles of gas are there in a 45.0 l container at 25.0 degress celcius and 500.0 mm hg
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
if 50.0 mL of 10.0 degrees ceclius water is added to 40.0 mL of 65.0 degrees celcius, calculate the final temperature of the mixture assuming no heat is lost to its surroundings,
Unlike chemical reactions, for which mass is conserved, nuclear reactions result in slight changes in mass. When mass is lost, it becomes energy according to the equation where is the energy in joules, is the mass defect in kilograms
how many grams of water can be cooled from 33 to 20 by the evaporation of 37 of water? the heat of vaporization of
bromothymol blue is a common acid-base indicator. it has a ka equal to 1.6 x 10-7. its unionized form is yellow and its
a 2.30-g sample of a large biomolecule was dissolved in 16.0 g of carbon tetrachloride. the boiling point of this
If the heat change for the decomposition of 25.0 g hydrogen peroxide is -72.2 kJ, what is the enthalpy of reaction for the process with respect to moles of hydrogen peroxide?
Pressure in a manometer, A manometer consists of a U-shaped tube containing a liquid. One side is connected to the apparatus and the other is open to the atmosphere
A solution is prepared by dissolving 19.9 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 15.00 mL sample of this stock solution is added to 59.00 mL of water.
balanced chemical equation for the reaction of aluminum with aqueous copper(II) sulfate producing copper metal and aluminum sulfate
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 82% of the Mg2 be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9*10-12.]
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