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A gas expands from 282 mL to 971 mL at constant temperature. Calculate the work done (in joules) by the gas if it expands against a vacuum.
A 36.3 ml aliquot of 0.0529 M H2SO4 (aq) is to titrated with 0.0411 M NaOH (aq) What volumen (ml) of base will it take to reach the equivalence point
The CaCl2 is purchased in the hydrated form. it contains one mole of water for each mole of compound, NaCO3 * H2O, and had a formula weight of 124.01 g/mol.
Acetylene (C2H2) can be produced from the reaction of calcium carbide (CaC2) with water. Draw the localized electron orbital model (hybridized orbital model) for the acetylide anion (C22-), showing ?, ?, and lone pair electron orbital.
Would the mass of the precipate collected be more, unchanged, or less if the residue was washed with hot distilled, deionized water instead
Assume the products are all gaseous. Show all your work. What is delta G and is the reaction spontaneous at 298K or nonspontaneous
The average osmotic pressure of blood is 7.7 atm at 25.0c. What molarity of a sterile saline (i.e., aqueous sodium chloride) solution is isotonic with blood (Use a van't Hoff factor of 2.00 for sodium chloride.)
Suppose a vessel contains 6.4 g of NH3, how many grams of O2 are needed for a complete reaction?
Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction. Round your answer to 2 significant digits.
If 6.46 L of gaseous ethanol reacts with 16.1 L O2, what is the maximum volume of gaseous carbon dioxde produced.
Using henderson hasselbalch calculate the ph of .5 L of 2.0M solution of nitrous acid, HNO2 that also contains 140g of nano2 (MM=70g/mol)
Calculate the molality of a sucrose (C6H22O11) solution containing 14.3 g of sucrose in 676 g of water
Calculate how much heat is required to added or removed to convert 100.0 g of steam at 115 0C to liquid water at 65 0C?
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