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A 75.0 mL volume of 0.200 M NH3 (Kb=1.8*10^-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 13.0 mL of HNO3.
When 2.45g of an unknown weak acid (HA) with a molar mass of 85.0g/mol is dissolved in 250.0g of water, the freezing point of the resulting solution is -0.258 degrees C.
chromatogram for the presence of compounds other than isopentyl acetate. Explain the presence of any additional compounds
In each of the following pairs determine the substance that has the highest boiling point. PH3 or NH3 Br2 or ICl GeH4 or CH4 LiF or HF WHY
The Ksp of zinc oxalate (ZnC2O4) at a given temperature is 7.87 x 10-9. Calculate the molar solubility at this temperature. Use E notation
In a fuel cell using oxygen as the oxidizer and hydrogen as the fuel, what is the overall cell reaction?
Name those that have a trisubstituted ring where the methyl gorups are oriented Ortho for 3 different isomers.
discuss at least three potentially hazardous features associated with concentrated sulfuric
How many grams of CaCl2 are needed to make 364.8 g of a solution that is 37.5% (m/m) calcium chloride in water? (Note that m/m has the same meaning as w/w.)
The following choices list some common laboratory solvents. In which of these solvents would LiCl be the LEAST soluble
a gold bar weighing 33.5g and having an initial temperature of 25.0 degrees celsius absorbs 5000 joules of heat. what
When combining with nometallic atoms, metallic atoms generally will... a) lose electrons and form negative ions b)lose electrons and form positive ions c) gain electrons and form negative ions d) gain electrons and form positive ions
When 83.6 joules of heat is added to 2 grams of water at 10 degrees Celsius, the temperature of the water increases to what value?
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