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What is the resulting pH when .005 moles of KOH is added to .1 L of buffer solution that is .100 M in H2PO4- and .100 m HPO4^2- and the Ka2 = 6.2x10^-8
What is the pressure of dry H2 in mmHg. In atm. d. Assuiming ideal gas behavior, how many moles of H2 has were collected.
NaOH is added to 625 mL of 0.250 M weak acid (Ka = 5.62 × 10-5). What is the pH of the resulting buffer?
Does the product xyz necessarily vanish when integrated over a a) cube, b) tetrahedron, c) hexagonal prism, each centered on origin?
The elctrolysis of an aqueous sodium chloride solution using inert electrodes produces gaseous chlorine at one elctrode. At the other electrode gaseous hydrogen is produced and the solution becomes basic around the elctrode.
Calculate the molarity of each of the following solutions. (a) 29.0 g of ethanol (C2H5OH) in 545 mL of solution
Write the net ionic equation describing the oxidation of mercury to HgO by O2 in a basic aqueous solution.
The solubility of barium sulfate varies with the composition of the solvent in which it was dissolved. In which solvent mixture would BaSO4 have the lowest solubility
Can anyone help me with the reaction sequence AND stepwise mechanism for the mono-nitration of phenyl methyl ketone
A beaker with 170 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 8.70 mL of a 0.370 M HCl solution to the beaker. How much will the p..
A rock sample contains traces of 238U, 235U, 232Th, 208Pb, 207Pb, and 206Pb. Careful analysis shows that the ratio of the amount of 238U to 206Pb is 1.164
Calculate the freezing point of a solution containing 5.0 grams of KCl and 550.0 grams of water. The molal-freezing-point-depression constant for water is .86 °C/m.
A woman requires taking ibuprofen twice daily in 625mg amount. Each pill in the bottle is 250 mg then determine the number of pills the woman requires to consume each time she needs 625mg dosage
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