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A sample 60 mL solution of hydrochloric acid (HCl) is titrated with 0.2 M NaOH. The volume of base necessary to reach the equivalence point is measured to be 25.403 mL. Explain what was the original concentration of the acid?
a design secures to parts with a line of hex-head bolts whose heads have a 12 distance across the flats i.e. take a
Calculate the solubility (in grams per 1.00 102 mL of solution) of magnesium hydroxide in a solution buffered at pH = 10.
Write the mass balance equation and charge balance equation for a solution that is 0.1 M FeCl3 and 0.2 M FeCl2
A solution is prepared by dissolving 17.75 g Sulfuric acid (H2S04;MW = 98.0g/mol) in 93.2 g of water. If the density of the solution is 1.1094g/mL, what is the molarity of the sulfuric acid?
170mL of O2 gas is collected over water at 25 degrees C and the total pressure is 742 mm Hg. The vapor pressure of water is 23.8 mm Hg at this temperature. What would the volume of the dry gas be at STP? ( hint Daltons Law and Combination Law are ..
What happens to the solubility of an ionic compound as ionic strength of the solution increases up to ~0.5 M)? Why is there a correlation between the solubility of an ionic compound and the ionic strength of the solution?
C6H12 + 9O2 ----> 6CO2 + 6 H2O 42 grams of cyclohexane burns in excess air to from carbon dioxide and water. How many grams of carbon dioxide and of water vapor are produced
a student boils the water in which he is attempting to dissolve his aspirin tablet which weighs 392 mg for several
What volume of 0.100 M NaOH is needed to make 100.0 mL of a buffer solution with a pH of 6.00 if one starts with 50.0 mL of 0.100 M potassium hydrogen phthalate?
Which reaction sequence would be best to prepare m-chloroaniline from benzene? a. chlorination, nitration, reduction
If the average solar insolation in USA = 4.25 kWh m-2 per day , and the area of USA is 9.36 x 1012 m2. Calculate: 1. The total available power in W. 2
Draw the major organic product from the reaction of 2-(carboxymethyl)benzoic acid with acetic
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