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Calculate the [NH3]/[NH4] ratio in an ammonia-ammonium chloride buffer with a pH of 9.00.a.) .56/1.00b.).74/1.00c.).86/1.00d.)1.12/1.00e.)1.30/1.00
A 50.00-mL solution containing NaBr (FW=102.894g/mol) was treated with excess AgNO3 to precipitate 0.2146 g of AgBr (FW= 187.772g/mol). What was the molarity of NaBr in the solution
If 282.5 ml of SO2 is allowed to react with 165.3ml of O2 (both measured at 303K and 47.8mmHg ), what is the limiting reactant
Assume that 0.406 mol Carbon (g) is placed in a cylinder that is expanding. The barometric pressure on the outside of the cylinder is constant at 1.00 atm and the temperature is 300.0 K.
Compute the translational, rotational, vibrational (compute excluding and including the zero point energy term), as well as electronic (compute taking the zero of energy to be that of the ground state molecule as well as that of the separated atom..
Given two liters of .407 M KCl how many milliliters of this solution you should use to prepare 250.0 ml of .175M KCl
A 0.500 L solution of 7.50 M hydrochloric acid is used to neutralize a 250.0 g sample of calcium hydroxide. Calcium chloride - a chemical used to control highway dust, strengthen concrete mixes, and add flavor to foods - is produced by the reactio..
describe the hybrid orbitals used by the central atom in o3.and also determines what is the number of sigma and pi
You will start with 500 mg of one of isoamyl acloho to make isoamyl acetate. While the alcohols are liquids, we will measure them by mass directly on the balance, not by volume (i.e. the density of the alcohol will not be used; pretend the alcohol..
Why are polychlorinated biphenyls (PCB's) importance to an EH&S or FS professional who encounters them when come to an incident where they are present?
A 1.07 g sample of sulfur was burned in a bomb calorimeter whose calorimeter constant is 2.03 kcal/°C. If the resulting temperature change was 1.17 °C, what is the molar heat of combustion for sulfur in kcal/mole
What is the hydroxide ion concentration and the pH for a hydrochloric acid solution that has a hydronium ion concentration of 1.50 × 10-3 M?
Determine the magnesium content (in ppm) of a 100.00 mL sample of drinking water if the following data were obtained. Titrant is 0.0551 M EDTA, 12.41 mL were used when an aliquot of the sample was at pH 13.0, 18.63 mL were used for an aliquot at p..
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