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Consider the titration of 30.0 mL of 0.030 M NH3 with 0.025 M HCl. The equivalence point is reached when 36 ml of HCl (titrant) is added. What is the pH at the equivalence point? (Kb of NH3 = 1.8 x 10-05) (a) For 36.0 mL of titrant, what is the pH?
Calculate concentration of soil organic matter in content given the concentration of organic carbon
Hydrogen ion concentration in mixtures, Calculate the hydrogen ion concentration of the following mixtures. a. 25mL of 0.10M HClO4 and 25mL of 0.15M HClO2
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure of ClO4-
What would be the effect of performing your kinetics experiments at a lower temperature than the one you used?
Write the complete stepwise mechanisms for reactions below. Show all intermediate structures and all electron flow with arrows.
what is the mole fraction of each componet in solution? ethanol, methanol, water.
If 0.215 mole of calcium chloride is dissolved in 491.9 ml of water, how much will it change the temperature of water (FWt=18.02)? The delta H=-81.3 kJ/mole for CaCl2
Consider the coordination of Cu2+ by the tridentate iminodiacetate ligand, HN(CH2CO2-)2, abbreviated A2-. When the monoprotonated form
Draw a titration curve for both of these peptides. Be sure to label the axes properly, indicate the pKa values, the equivalence points and the buffering regions
If 37.3 g of CO2 is produced in the reaction of C2H2 with O2 to form CO2 and H2O, how many grams of H2O are produced in this reaction.
Calculate the value of w (work) for the following system if 20.2 g of NaN3 reacts completely at 1.00 atm and 22 °
Compute the pH of a solution made by mixing eighty grams of NaCH3COO, to 39 grams of CH3COOH, and adding in H2O to produce 500. mL of solution.
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