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Beginning with 150.0 mL of 0.175 M ammonia, determine the solution's pH after each of the following steps:a) before any additional material is added to the solution, b) after 25.0 mL of 0.200 M nitric acid, HNO3, is added, c) after 25.0 mL of 0.400 M ammonium chloride is added to the solution resulting from step (b), andd) after an additional 25.0 mL of 0.400 M ammonium chloride is added to the solution (be sure to account for the change in volume at each step).
How many grams of the solid can be formed from 268 g of calcium nitrate and 115 g of phosphoric acid?
Calculate the volume of oxygen required to burn 5.00 L of propane gas, C3H8, to produce carbon dioxide and water, if the volumes of both the propane
A gas occupying 28mL at standard conditions is heated to 18C while the pressure is reduced to 0.98221 atm. What is the new volume occupied by the gas? Answer in units of mL.
cadmium ion in solution is analyzed by precipitation as the sulfide a yellow compound used as a pigment in everything
the mass of a cube of iron is 324 g. iron has a density of 7.87 gcm3. what is the mass of a cube of lead that has the
Find out the Kb of ammonia if the pH of a buffer formed by mixing 50.0 mL of 1.00 M NH 3 and 50.0 mL of 1.00 M ammonium nitrate?
The principal quantum number, n, describes the energy level of a particular orbital as a function of the distance from the center of the nucleus. Additional quantum numbers exist to quantify the other characteristics of the electron.
At 25 degrees celsius how many dissociated H+ ions are in 167 mL of an aqueous sloution whose ph=12.07? hint find concentration of H+
"Crossed" or "mixed" aldol condensations are practical for synthesis, if one of the aldehydes (or ketones) has no alpha-hydrogen atoms. Explain.
what is the balanced equation for the neutralization reaction between HI and Ba(OH)2 in aqueous solution
2Fe(s) + O2(g) => 2FeO(s) ?H = -544.0 kJ 4Fe(s) + 3O2(g) => 2Fe2O3(s) ?H = -1648.4 kJ Fe3O4(s) => 3Fe(s) + 2O2(g) ?H = +1118.4 kJ Given the data above, determine the heat of reaction, ?H, for the reaction below: Reaction: Fe2O3(s) + FeO(s) => Fe3O..
what is the enthalpy change per mole of ethanole burned. the spacefic heat capacityof H2O is 4.184J/gC
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