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Problem- Write out and balance the equation for the following reaction: Potassium Hydroxide reacts with Phosphoric Acid to produce Potassium Phosphate and water. How many mL of a 1.45 M solution of Potassium Hydroxide would it take to react with 15.6 mL of a 2.52 M solution of Phosphoric acid?
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What was the percentage by mass of Mg(OH)2 in the original sample? [Hint: When Mg(OH)2 or Al(OH)3 reacts with HCl(aq), the products are a chloride salt, water and CO2(g). Assume that all of the CO2(g) leaves the solution without reacting.]
Calculate the molar solubility of Fe(OH)2 in a buffer solution where the pH has been fixed at the indicated values. Ksp = 7.9 x 10-16. (a) pH 7.5 M (b) pH 10.1 M (c) pH 12.0 M
osmium os is the densest element known density 22.57 gcm3. calculate the mass in pounds and in kilograms of an os
a solution of 75 ml of 0.2 m nh3 is titrated with 50 ml of 0.5 m hno3. what is the ph of the resulting solution when 17
a mixture containing 235 mg of helium and 325 mg of neon has a total pressure of 453 torr. what is the partial pressure of helium in the mixture?
The enthalpy of a solution of KBr in water is about +198 kJ/mol. Nevertheless, the solubility of KBr in water is relatively high. Why does the solution process occur even though it is endothermic
A molecule in which centers of positive and negative charge do not coincide must be.
The vapor pressure of liquid Ni is 0.100 torr at 1606 degrees C and 1.00 torr at 1805 degrees C. The molar heat of fusion of Ni is 3.25 kcal/mol. Determine the vapor pressure of solid Ni at 1200 degrees C.
How many grams of Cl2 can be prepared from the reaction of 8.00g of MnO2 an 25.0 g of HCl according to the following chemical equation? MnO2 + 4HCL --> MnCl2 + Cl2 +2H20
Determine how much heat (in kJ) is needed to warm 12.0g of ice, that is initially at -10.0 ° C, to steam at 114.0 ° C? The heat capacity of ice is 2.09 J/g⋅ ° C and that of steam is 2.01 J/g⋅ ° C.
Draw the stereochemical (3-D) structures of these compounds and explain these observations.
explain why this series of reaction will produce the 3,5-dibromotoluene and direct bromination of toluene produces the 2,4-dibromotoluene.
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