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A beaker with 115 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 5.70 mL of a 0.480 M HCl solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760.
How many different tetrapeptides containing 2 molecules of alanine and 2 molecules of valine could theoretically exist?
What volume of 0.0100 M KMnO4 solution is required to oxidize 42.5 mL of 0.0100 M FeSO4 sulfuric acid solution?MnO4- + 8H+ + 5Fe2+ ® Mn2+ + 5Fe3+ + 4H2O
A sample of oxygen gas has a volume of 3.34l at 21 c . what volume will it occupy at 144 F if the pressure and number of mol are constant
Find the volumes required of Catechol and Ethanol to create a mixture of 50uM Catechol and 50uM Ethanol. Both solutions are 5mM stock
A free electron initially at rest at the back of Cathode ray tube in your television accelerate through a potential
What quality of heat is required to change the temperature of 30.0g of water at 10Cto 25C
Half-life equation for first-order reactions: (the 1/2 in t1/2 is a subscript) t1/2=0.693/k where t1/2 is the half-life in seconds (s) , and k is the rate constant in inverse seconds (s^-1).
Natural gas is a mixture of many substances, primarily CH4, C2H6, C3H8, and C4H10. Assuming that the total pressure of gases is 1.48atm and that their mole ration is 94:4, 0:1, 5:0.50, calculate the partial pressure in atmospheres of each gas.
When ethyl benzoate is heated in methanol containing a small amount of HCl, methyl benzoate is formed. Draw structural formulas for the first two intermediates in this reaction. Indicate the order of formation of the intermediates by drawing a 'Rea..
What is the technique or test for the identification of the formation of alkenes and what mechanism occurs in the test
How would this affect the calculated Ksp (for Ca(OH)2)? How would this affect the calculted molar solubility of Ca(OH)2
Write a reaction mechanism for the chlorination of 1-butene by Cl2. Use curved arrows to show electron movement. Show structures of key reaction intermediates and products and indicate the stereochemistry of the reaction.
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