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How many electrons in a ground-state krypton atom are in orbitals labeled by ml = 1
What volume of 3.00 M NaOH must you add to the acetic acid to achieve a buffer with a pH of 5.00 at a final volume of 500 mL? (Ignore activity coefficients.)
Calculate the distance between the particle layers for the face-centered-cubic (FCC) and body-centered-cubic (BCC) unit cells
If oxygen gas were collected over water at 20 degrees C as well as the total pressure of the wet gas were 670 mm Hg, explain what would be the partial pressure of the oxygen
When too much H2CO3 is in the blood, the enzyme carbonic anhydrase catalyzes the conversion of carbonic acid, H2CO3, to carbon dioxide, CO2, and water, H2O.
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure.
a stock solution containing cobalt ions was prepared by dissolving 393 grams of pure cobalt metal in nitric acid and diluting to a final volume of 8.75 L. Determine the concentration of the stock solution.
Calculate the molar concentration of OH- ions in a 0.540 M solution of hypobromite ion (BrO^ -\K_b = 4.0* 10^- 6.)
A scientists places 4.00 moles of Argon, Ar (g) and 2.00 moles of Helium, He (g) into a flask at the temperature of 298 Kelvin and measures the pressure to be 3.00 atm. calculate the pressure due to Helium gas?
Write a balanced equation using the correct formulas and include conditions ( s, l, g, or aq) for each of the following reactions: a. Solid calcium carbonate decomposes to produce solid calcium oxide and carbon dioxide gas. b. Nitrogen oxide gas reac..
How many moles of NaBrO should be added to 1 l of 0.200 M hypobromous (HBrO) acid to obtain a buffer of pH 8.80 (assume no volume change occurs when solid NaBrO is added)? The pka of the acid is 8.70.
One mole of an ideal gas (Cv=3/2R) is heated at (a)constant pressure and (b) constant volume from 298Kto 353K. Calculate delta_S for both cases.
Depict a Lewis structure for the most significant resonance form of each ion showing formal charges and oxidation numbers of the atoms (a) AsO43- (b) ClO-2 Explain what are the oxidation numbers for As and O in ASO43-
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