What is the total molarity of the original buffer
1 L of a buffer composed of acetic acid and sodium acetate has a pH of 4.3. Adding 10mL of 2M sodium hydroxide solution to 100mL of this buffer causes the pH to rise to 4.78. What is the total molarity of the original buffer?
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1 L of a buffer composed of acetic acid and sodium acetate has a pH of 4.3. Adding 10mL of 2M sodium hydroxide solution to 100mL of this buffer causes the pH to rise to 4.78.
What volume of carbon dioxide, measured at STP, will beliberated (that means given off) when 300.08 grams of calciumcarbonate reacts with excess hydrochloric acid (The other productsare calcium chloride and water)?
A 95.0 gram piece of copper wire is heated to 89.2?C and thenplaced in a calorimeter containing water at 20.4?C. The finaltemperature of the water and copper wire is 23.0?C. The heat capacity of the calorimeter is 32.0 J/K.
How many grams of dipotassium oxalate (M.W.=166.22) should be addedto 20.671 mL of 0.7097 M HClO4 to provide a solutionwith a pH value of 5.6919 when the solution is diluted to 44.517mL?
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