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If the reaction of phosphate ion with water is ignored define what is the total concentration of ions in a solution prepared by dissolving 3.00 g of K3PO4 in enough water to make 350mL of solution?
A) 0.162 MB) 0.0404MC) 0.323MD) 0.0101 M
One of the advantages offered by a synthetic detergent is that it won't form "soap scum" with hard water. Show the chemical reaction that a soap (use RCO2-) undergoes with calcium or magnesium ions
what is the main overall driving force for any spontaneous reaction or
How many joules of energy are needed to melt 54 grams of ice at its melting point? Assume that the molar heat of fusion of ice is 6 kJ/mol.
at 298 kpbio32s harr pb2aq 2io3-aq ksp 2.6x 10-13pb2aq 2e- rarr pbs eo -0.126 v.find the standard potential of the
While shutdown, the core accidentally went critical and the reactor pressure vessel rose in temperature and was hot for two hours, but all instrumentation has failed and no one is sure what the temperature was.
What is the concentration of [Cl?] in a solution of 10 mL of 12 M HCl when 6 mL of water is added
how many liters of H2 would be formed at 530 mm Hg and 15 degrees celcius if 20.5g of zinc was allowed to react?
a container contains oxygen neon and helium whose partial pressures are 100 torr 300 torr and 200 torr respectively.
Calculate the mass (in mg) of KCN needed to make 500. mL of aqueous KCN solution with a pH of 10.00.
What NaCl concentration results when 299 mL of a 0.820 M NaCl solution is mixed with 407 mL of a 0.450 M NaCl solution? When heated, KClO3 decomposes into KCl and O2
The partial pressure of CO2 inside a bottle of soft drink is 4.0 atm at 25°C. The solubility of CO2 is 0.12 mol/L. When the bottle is opened, the partial pressure drops to 3.0 * 10-4 atm. What is the solubility of CO2 in the open drink? Express yo..
The element silicon has 3 isotopes with the masses and natural abundances shown in the table. Mass of Isotope Natural abundance 27.97693 92.23 28.97649 4.67 29.97376 3.10 What is the average atomic mass of silicon
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