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A.Calculate the equilibrium concentration of H3O+ in the solution if the initial concentration of C6H5COOH is 7.0×10?2 .
B.Calculate the equilibrium concentration of C6H5COO- in the solution if the initial concentration of C6H5COOH is 7.0×10?2 .
C.Calculate the equilibrium concentration ofC6H5COOHin the solution if the initial concentration of C6H5COOH is 7.0×10?2
A 2.5M solution of hydrocyanic acid has a measured pH of 4.5. Calculate the Ka for hydrocyanic acid and its % dissociation.
How many grams of sodium formate, NaCHO2, must be added to 750.0mL of .250 M of formic acid, HCHO2, to obtain a buffer with pH of 5.5
Suppose that 0.82 g of water condenses on a 80.0 g block of iron that is initially at 24 C.If the heat released during condensation goes only to warming the iron block
Application of Avogadro's law - To evaluate the volume of a gas using Avogadro's Law.
How many millilitres of 0.200 M HCl must be added to 50.0 mL of a 0.200 M solution of NH3 in order to prepare a buffer that has a pH of 8.60? Kb of NH3 = 1.8 x 10-5.
A solution is prepared by mixing 78.0 mL of 5.00 M HCl and 35.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+ ], [OH - ], and the pH for this solution.
What volume 0.100 M NaOH will react completely with 25.00 mL of 0.100 M HCl?
A helium-filled balloon has a volume of 2.63 L at 28 ? C. The volume of the balloon decreases to 2.36 L after it is placed outside on a cold day.
30.0 mL of water at 24.5 °C was mixed with 40.0 mL of water at 40.0 °C. If the specific heat of water is 4.184 J/g °C and no heat was absorbed by the calorimeter, then the final temperature is _____ °C. (Report to the proper number of significant ..
The reading on a mercury manometer at 25 deg C (open to the atmosphere at one end) is 56.38 cm. The local acceleration of gravity is 9.832 m s-2.
A beaker with 115 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 . A student adds 9.00 of a 0.430 solution to the beaker. How much will the pH change? The ..
you have 505ml of a .170m HCL solution and you want to dilute it to exactly .100M. how much water should you add?
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