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What is the ionic strength of a buffer?
Is a molecule always charged or uncharged?
If given the pKa of succinicacid (4.19) is it protonated or unprotonated?
Suppose that a liquid is 11 times denser than water If you were to sip this liquid at sea level using a straw what would be the maximum length of the straw
What ions and/or molecules are present in relatively large proportions in a solution of a soluble ionic compound NaCl (aq)
At 25 C the vapor pressure of water is 23.8Torr. If 10.02g of water is placed in a 3.00L flask at 25 C, will the water be completely gaseous, entirely liquid, or in both phases. If in both phases, find out the mole fraction in each phase.
consider the combustion of ethylene c2h4g 3o2g ----gt 2co2g 2h2og. if the concentration of c2h4 is decreasing at the
What would be the expected J-coupling (in Hertz) for the two non-aromatic trans-alkenyl protons
Depict the structure of the products that would be formed when cyclopentanol respond with p-toluenesulfonyl chloride, then base followed by KI.
For the equilibrium 2H2S(g) 2H2(g)+S2(g) Kc=9.0x10^-8 at 700 degrees C. The initial concentrations of the three gases are 0.550 M H2S, .550 M H2, and .275 M S2. Determine the equilibrium concentrations of the gases.
The ionization energy of tin is 708.0 kJ/mol. Calculate the maximum wavelength of light that will ionize tin.
add the angular wave function for a 2s electron of carbon to that of a 2py electron of the same carbon atom. subtract
a. What is the role of the Mg in preventing corrosion? b. What qualities must a metal like Mg have to prevent oxidation of another metal? c. Calculate the K for corrosion with Fe present. Assume standard conditions.
Whats the melting point would be if you mixed acetanilide with 10 % by weight of naphthalene(acetanilide mp 113.5-114; naphthalene 80-82)
an aqueous solution is prepared by diluting 3.30mL acetone, CH3COH3, (d= 0.789g/mL) with water to a final volumeof 75.0 mL. The density of the solution is 0.993 g/mL. what are the molarity and the molality of acetone in this solution?
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