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The quantity of antimony in an ore can be determined by an oxidation - reduction titration with an oxidizing agent. The ore is dissolved in hot, concentrated acid and passed over a reducing agent so that all the antimony is in the Sb^3+(aq). The Sb^3+ (aq) is completely oxidized by a an aqueous solution BrO(3)^-
BrO(3)^- + Sb^3+ ---> Br^- + Sb^5+
complete and balance the equation for this reaction in acidic solution.
What fraction of myoglobin will be loaded with oxygen under the conditions that allow 50% of hemoglobin exist in oxygen-bound state? Assume that p50 (myoglobin) = 2.8 torr, p50 (hemoglobin) = 26 torr.
if the molarity of the HCl solution was actually greater then the lable indicated would it affect the calculated value for the number of moles of HCl that reacted.
A compound of carbon and hydrogen contains 80% carbon by mass. What is the mole ratio of carbon to hydrogen in this compound
Concentrated sulfuric acid is used as a catalyst for the esterification of acetic acid in the preparation of isopentyl acetate. Why is sulfuric acid needed if another acid, acetic acid, is already present
a flask of one litre is filled with 1.30 grams of argon gas at the temperature ofnbsp 25 degrees celsius. a sample of
The bacteria Azotobacter chroococcum grows aerobically and plays an important role in the soil nitrogen cycle. Azo can bind atmospheric nitrogen which is inaccessible to plants then release ammonia ions into the soil that plants can absorb
What is the molarity of an acetic acid solution prepared by diluting 200.0 mL of 0.500 M HC2H3O2 to a total volume of 1.00 L
a flask containing 352 ml of gaseous nitrogen is collected over water at a temperature of 22 degree celsius. the total
Show that the balanced equation obeys the law of conservation of mass.
for na and mg ions compare the ratios of the number of ions in the 3p excited state to the number in the ground state
a 21.496-g sample of Magnesium is burned in air to form Magnesium Oxide and magnesium nitride. When the products are treated with water, 2.813-g of ammonia gas are generated. Calculate the amounts of magnesium nitride and magnesium oxide formed.
compute the vapor pressure at the temperature of 25 degree celsius of h2o above a solution formed by mixing 100. grams
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