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Which of these names and formulae do NOT match correctly. 1. N2O4 : dinitrogen tetroxide 2. MgF2 : magnesium ?uoride 3. HgCl : mercury (II) chloride 4. SF6 : sulfur hexa?uoride 5. Fe(NO3)3 : iron (III) nitrate
For the reaction of the ammonium ion with nitrous acid, the net reaction is NH4 (aq) + HNO2(aq) yields N2(g) + 2H2O (l) + H (aq) If the initial concentration of nitrous acid is 1.00 M and after 48.1 s has elapsed, the concentration of nitrous acid..
When benzoic acid is partitioned between diethyl ether and queous sodium hydroxide solution and the aqueous layer is separated, acidification of the aqueous solution yields a precipitate.
An element has ccp packing with a face-centered cubic unit cell. Its density is 11.4 g/mL and the unit cell volume is 1.21 x 10-25 L. Calculate the molar mass (g/mol) of the element to three significant figures.
Approximately how many grams of monosodium succinate (FW = 140 g/mol; succinic acid pK2=5.64) and disodium succinate (FW = 162 g/mol) must be added to 1L of water to produce a solution with a pH 5.28 and a total solute concentration of 100 mM.
If the partial pressure of helium is the same as the partial pressure of oxygen, what do you know about the number of helium atoms compared to the number of oxygen molecules? explain.
If the barometer at your house reads 767.2 mm of mercury what is the atmospheric pressure in kPa
A solution of cough syrup contains 5.00\% active ingredient by volume. If the total volume of the bottle is 34.0mL , how many milliliters of active ingredient are in the bottle? Express your answer with the appropriate units.
In lab we are doing chemical kinetics. We started off with 0.7550 M of Oxalic acid and then added water and 0.1300 M of Permanganate. For the first trial, 5 mL of Oxalic acid was used, then 6 mL of water were added and then 1 mL of Permanganate we..
An open flask sitting in a lab fridge looks empty, but we know that actually it is filled with a mixture of gases called air.
Calculate the emf of a platinum electrode immersed in an aqueous solution buffered at pH 4.3 where oxygen gas evoleves at a partial pressure of 2.50 atm at a temperature of 25 celcius. 2 H2O (l)----- O2 (g) + 4H+ (aq) + 4 e
the rate law for a hypothetical reaction is rateka2. when the concentration is .10 molesliter the rate is 2.7 times
If you put 120 volts of electricity through a pickle, the pickle will smoke and start glowing an orange-yellow color. The light is emitted because the sodium ions in the pickle become excited; their return to the ground state results in light emis..
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