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How many grams of lactic acid, CH3CHOHCOOH, together with 2.00 grams of NaOH, must be used to prepare 225 mL of Lactic acid-lactate ion buffer at pH = 4.00CH3CHOHCOOH (aq) <------> H+(aq) + CH3CHOHCOO-(aq) Ka = 1.4 x 10-4
What salt is formed from the neutralization reaction between perchloric acid and potassium hydroxide
Discuss the common-ion effect by comparing the solubility of CaCO3 in 3.0 x 102 ml of water and in the presence of 0.015 mole of Ca(NO3)2.
Does increasing the size of an axial substituent always result in higher relative strain energies for the axial conformation
estimate the volume of 5 M NaOH must be added to adjust the pH from 4 to 9 solution of 100mL 100mM phosphoric acid
prove the presence of the cations listed : Sn2+ , cd2+, Cu2+, Bi3+. write four paragraphs about these cations a paragraph each?
A solution containing an unknown amount of X and 10.25 mM of Y was run and gave peak areas of 8.20 and 6.50 cm2 respectively. What is the concentration of X in the unknown solution? What kind of standard is Y?
How much energy is released per Kg of Dilithium formed? Mass of one atom of 6 Li is 6.015121 amu. Do not know where to start.
A complex ion, [M(H2O)6]2+, is green in solution. Which of the following ligands, when bound to the same metal might cause the solution to be orange
An unknown salt is either NaF, NaCl or NaOCl.When 0.050 mol of the salt is dissolved in water for form 0.500 L of solution, the pH of the solution is 8.08. What is the identity of the salt?
a compound was analyzed and was found to contain the following percentages of the elements by mass barium 89.56 oxygen
26.0 grams of an unknown sugar was dissolved in water and the final volume of the solution was brought up to 1.00 L. The osmotic pressure of this solution was determined to be 3.53 atm at 25°C. Which of the sugars below was most likely the unknown..
How many minutes would a 5.00 ampere current have to be applied to plate out 8.00g of copper metal from an aqueous solution of Copper (II) Sulfate
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