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Calculate the percent ionization of hypobromous acid (HBrO) in solutions of each of the following concentrations (Ka = 2.5e-09.) (a) 0.135 M % (b) 0.583 M % (c) 0.601 M %
A compound contains only carbon, hydrogen, nitrogen and oxygen. Combustion of 0.314 g of the compound produced 0.426 g CO2, and 0.0620 g H2O. In another experiment it is found that 0.103 g of the compound produces 0.0460 g of NH3
What is the magnitude of the change in pH when 1.8 g of NaOH is added to 1.00 L of a solution that is 0.100 M in NH3 and 0.100 M in NH4Cl?
The major isotopes of tungsten are 182W (26.32%), 183W (14.31%), 184W (30.67%), and 186W (28.62%). What is the atomic weight of W?
The mole fraction of A in the vapor is found to be 0.67. What is the mole fraction of A in the solution?
Give the balanced chemical equation (including phases) that describes the combustion of butene,
A 2.154-g sample of HgO produces 125 mL of oxygen collected over water at 24 degrees C and an atmospheric pressure of 763 mm Hg. Calculate the STP molar volume for oxygen.
How much heat is absorbed in the complete reaction of 3.00 grams of SiO2 with excess carbon in the reaction below?SiO2(g) + 3 C(s) → SiC(s) + 2 CO(g) ?H for the reaction is +624.7 kJ/mol
Calculate the energy in joules and calories required to heat 40.0 silver (Ag) from 112 C to 270 C
start with 4-cyclopentylphenol and react with NaOH, CH3I, NBS, heat show each step to get the final product.
When 325 g Bi2O3 reacts with excess carbon, how many moles of Bi are expected to form?
what is the structure of an ester of 2-methylpropionic acid that has the molecular formula: C8H13ClO2 and 5 signals in its 1H NMR spectrum?
When the sodium atom becomes a sodium ion, how does the size and electron configuration of the sodium atom change?
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