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The acid-dissociation constant for chlorous acid HClO2 is 1.1X10^-2. Calculate the concentrations of H3O+, ClO2-, and HClO2 at equilibrium,  if the initial concentration of HClO2 is 0.0125M
given the total mass of water on earth is 1.55 1021kgand the amount of oxygen molecule releases by photosynthesis is
Explain what the tems endo and exo mean with respect to the stereochemistry of the products formed in the diels-alder reaction using maleic acid and cyclopentadiene.
Calculate the molarity of a 5.72 m aqueous sucrose (C12H22O11) solution with a density of 1.50 g/mL.
Isotope 1 has a mass of 107.0 amu and an abundance of 55.9%. Isotope 2 has a mass of 109.0 amu. What is the atomic mass of the element?
Catalyst works by lowering action barrier of rate limiting step. In a 1st order reaction, concentration of reactant is doubled then rate of reaction is doubled.
Draw the organic product formed when CH3CH2C(triple bond)C-Na+ reacts with (CH3)2CHCH2CH2Cl
Identify the group of elements that corresponds to each of the following generalized electron configurations and indicate the number of unpaired electrons for each:
Draw the structure of dimethyl sulfoxide. Include any nonbonding electrons on sulfur, and minimize formal charges by allowing sulfur to expand its octet.
A sample of gas has an initial volume of 2.8 L at a pressure of 753 mmHg .If the volume of the gas is increased to 3.6 L, what will the pressure be
a student used a dcp solution standardized to 9.94x10-4m to analyze a sample of extract from 3.50g of solid food. the
A sample of a gas weighs 2.006 g and has a volume of 1060.0 mL at 795.0 torr and 32.0 degrees Celsius. What is its molar mass?
What is the pH of a buffer that results when 0.40 mol NaHCO2 is mixed with 100.0 mL of 2.00 M HCl and diluted with water to 250 mL (Ka of HCO2H=1.8*10^-4.
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