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A beaker with 1.90×10 2 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 . A student adds 6.90 mL of a 0.300 mL solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760.Express your answer numerically to two decimal places. Use a minus (- ) sign if the pH has decreased.
Which of the following ionic compounds will be more soluble in acid solution than in water? Explain your choice/s
The concentration of the HCl solution is 0.1016 M HCl. What volume of 0.1338 M Ba(OH)2 would neutralize 50.00 mL of the HCl solution standardized in the situation above.
Disscuss by IR spectrum and NMR. On my spectrum, it showed up 3282.57, 16557.91 and 16003.22. What are those wavelength are stand for
Cake alum, aluminum sulfate, is commonly used to purify sewage. What mass of precipitate, aluminum hydroxide, forms whn 185.5 mL of 0.533 M NaOH is added to 627 mL of a cake alum solution that contains 15.8 grams per liter
What is the final temperature of spoon + coffee? (Assume that the heat capacity of the spoon is the same as that of pure iron and that the heat capacity of the coffee is the same as that of pure water.)
53.5 g of an ideal gas of molecular weight = 30.5 g/mol are confined at a pressure of 133 mmHg. The density of the gas is 0.228 g/L. Compute the temperature of the gas in degrees Celsius.
By what factor (how many times) will the rate constant increase when the temperature is raised from 10°C to 28°C?
Solve an equilibrium problem (using an ICE table) to calculate the pH of a solution that is 0.185 M in HC2H3O2 and 0.120 M in KC2H3O2
Write the mathematical expression for the equilibrium constant, Keq, as a function of the concentrations of the products and reactants for this reaction.
Organelles compartmentalize a cell like a department store displays similar items together. What advantage does such compartmentalization offer a large cell and what are two examples of oraganelles and the activities they compartmentalize?
2sbs 3ss rarr sb2s3s is the given equation in which sb2s3 is 340. gmol determine what is the mass percent yield from
calculate the actual yield of magnesium nitrate formed from 113.9 g of magnesium and excess copper(II) nitrate.
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