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Problem- How would a buffer solution with a pH of 4.92 be prepared from acetic acid (ka=1.8 x 10^-5) and its conjugate base?State your answer as a chemical formula.
calculate the ph of a solution formed by mixing 250.0 ml of 0.15 m nh4cl with 100.0 ml of 0.20 m nh3. the kb for nh3 is
What mass of sucrose should be combined with 461g of water to make a solution with an osmotic pressure of 8.80 atm at 280 K
write the sybolic representation for the galvanic cell. what would "standard conditions" for this galvanic cell be? If the cell is at standard conditions, determine the cell potential(E cell).
Beta-Dicarbonyl Compounds, There are two reason why the enols of beta-dicarbonyl compounds, such as pentane-2,4-dione are relatively stable.
Define why gel electrophoresis is important in recombinant DNA technology. As well, explain how DNA molecules can be detected in gels.
a sample of gas weighs 4.134g and has a volume of 910.0ml at 895.0 torr and 39.0 c. what is the molar mass?
When an amino acid is dissolved in a buffer solution, the pH of which is less than the isoelectric point of that amino acid, and an electric current is passed through the solution
An automobile gasoline tank holds 21 of gasoline. When the gasoline burns, 84 of oxygen is consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced?
would bromine be a more or less effective disinfectant and bleaching agent than chlorine
How might the yield of product be affected by adding twice as much water as is specified, while keeping the quantities of the other reagents the same
Draw the lewis structure for aluminum sulfide ionic compound and what chemical formula the lewis theory predicts. I do not know what to do with the 6 and 3 dot structure to combine them.
if the molarity of the HCl solution was actually greater then the lable indicated would it affect the calculated value for the number of moles of HCl that reacted.
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