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Many electrophilic aromatic halogenations require the presence of an aluminum trihalide as a catalyst. Why was cold deionized water added to the reaction mixture rather than hot water, and what is the purpose of acetic acid?
a mixture of gases containing .20 mol of SO2 and .2 mol of O2 in a 4.0L flask reacts to form SO3. If the temperature is 25C, what is the pressure in the flask after reaction is complete?
Draw the Lewis structures of the following compounds and find out number of electron groups, number of lone-pairs, geometry of electron
At a certain temperature, K = 9.1 10-4 for the following reaction. FeSCN2+(aq) Fe3+(aq) + SCN -(aq)
when 9.00 g of Al react with an excess of H3PO4, 30.0 g of AlPO4 are prodecued. What is the percentage yield of this reaction?
A 1-ft-diameter cylinder is closed on one end and fitted with a moveable piston on the other. With 1 atm applied pressure, the piston is located 20 ft from the closed end
List five food product would give a positive iodine-starch test for carbohydrate mention somthing beside potato
The solubility of CaF2 is 0.00021 mole per liter. What is the solubility product constant for CaF2?
demonstrate that an excess of hydrogen peroxide was used in the oxidation step of Fe(II) to Fe(III)
If 45 mL of H2 (g) are collected over water at 27°C and 751 mmHg external pressure. How many grams of Al were reacted.
36.45 mL of 0.11 M hydrochloric acid were added to 36.45 mL of 0.098 M aqueous barium hydroxide. Calculate the theoretical yield of the salt produced.
How much would the beaker and its content weigh if it was completely filled with mercury? The density of mercury is d = 13.5 g/mL ? = g
A tank with a total pressure of 4.7 atm has a mixture of gases that is 72% nitrogen, and the rest is oxygen. What is the partial pressure of the nitrogen? The oxygen?
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