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A 120.0mL buffer solution is 0.105M in NH3 and 0.135M in NH4Br. What amount of HCl could this buffer neutralize before it fell below 9.0 pH
A solution of Na3PO4 is added dropwise to a solution that is 0.0494 M in Ag+ and 0.00318 M in Cu2+. The Ksp of Ag3PO4 is 8.89e-17. The Ksp of Cu3(PO4)2 is 1.4e-37. (a) What concentration of PO43- is necessary to begin precipitation
How could you convert each of the following compounds into butanoic acid? Write each step showing all reagents. (a) 1-Butanol (b) 1-Bromobutane (c) 1-Butene
What is the change in entropy in entropy in the system in J/K when 39.3 grams of steam at 1 atm condenses to a liquid at the normal boiling point.
A photon having E = 46.9 keV energy scatters from a free electron inside a metal. What is the maximum energy the electron can gain from the photon
A 5.0×101 sample of water absorbs 355 of heat.If the water was initially at 25.9, what is its final temperature.
the solubility of silver sulfate in water is 0.223 wv at 35degc. calculate the solubility product of this salt at this
determining the limiting reactant and mass of the product.phosphorous trichloride can be produced from the reaction of
10.0 mL of a 0.30 M sodium phosphate solution reacts with 20.0 mL of a 0.20 M lead(II) nitrate solution (assume no volume change). What is the concentration of phosphate ions left in solution after the reaction is complete
Tests on a sphere are conducted in a wind tunnel at an air speed of U0. the velocity of flow toward the sphere along the longitudinal axis is found to be u=-U0(1-r0^3/x^2) where r0 is the radius of the sphere and x is the distance from its center.
How many grams of body mass does the person lose in about 8 h sleep if all the CO2 and H2O exhaled come from the metabolism of glucose
the molar heat of fusion of water is 6.01 kjmol. how much heat energy is required to melt one ice cube in a soft drink
The initial concentration of some weak acid, HA, in an aqueous solution is 0.2150 M, at equilibrium the concentration of HA becomes 0.0955 mol/L.
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