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Conjugate Pairs of Acids and Bases
What is the base if the acid is H2PO4- and the equation of the pair?
What is the base if the acid is HPO4-2 and the equation of the pair?
What is the acid if the base is F- and the equation of the pair?
Determine what would be its temperature after absorption of 9.4 * 10-2 kWh of heat If 1.45 L of water is initially at 25.0 °C,?
A gaseous mixture of O2 and N2 contains 36.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 685 mmHg.
At 10 degrees, Kc = 56.3 for the reaction below. H2 + Cl2 --> HCl
Quantum number representations - What are the possible values of the four quantum numbers for one electron in a 5d orbital?
pKa of a carboxylic acid group found on a molecule of DOM is 4.2 and pKa of An amino group found on a molecule of DOM is 9.3. Explain how pH influences the ability of these groups to bind to metals. Illustrate how well each of these groups would b..
What is the energy per photon of the lowest frequency of electromagnetic radiation that can be used to observe a gold atom with a diameter of 280 picometers.
If 25.00 mL of 0.687 M Fe(NO3)2 are added to a flask containing 0.289 g of aluminum metal, what compounds will be present in the flask once the reaction is complete? (Ignore water, etc.)
Determine what is the coordination of the cations in the case of a normal spinel and what point defects are possible in the spinel structure?
the standard molar enthalpy of vaporization for water is 40.79kj/mol. what mass of steam is required to release 500. kj of energy upon condensation.
what is the maximum amount of P4S10(444.545 g/mol) which could be formed from 17.12 g of P4 (123.895 g/mol) and 0.137 mol of S8 (256.52 g/mol).
What mass of potassium bromide residue remains if 500.0 mL of 0.200 M potassium bromide solution are evaporated to dryness.
The constant pressure molar heat capacities of ice and water are 37.7 J/ mol K and 75.3 J/ mol K respectively. The molar enthalpy of fusion of ice is 6.01 kJ/ mol at 0.00° C. The system consists of a 105 gram sample of H2O, initially in the form o..
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