Calculate the pH of a 3.6 ✕ 10−3 M solution of H2SO4. WebAssign will check your answer for the correct number of significant figures.
Calculate the pH of a 3.6 ✕ 10−3 M solution of H2SO4. WebAssign will check your...
Calculate the pH of a 7.5 x 10-5 M NaOH solution. Record your answer in the correct number of significant figures.
Calculate the pH of a 3.9 ✕ 10−3 M solution of H2SO4.
A solution of 0.0470 M HCl is used to titrate 29.0 mL of an ammonia solution of unknown concentration. The equivalence point is reached when 15.5 mL HCl solution have been added. (Assume Kw = 1.01 ✕ 10−14.) (a) What was the original pH of the ammonia solution? WebAssign will check your answer for the correct number of significant figures (b) What is the pH at the equivalence point?
the ph of a solution with [H3O +] = 5.9 * 10 -3 M, to the correct number of significant figures is?
Calculate the pH of a 0.002 M H2SO4 solution. Ka for H2SO4 is 1.2*10^-2.
A simple pendulum has a mass of 0.650 kg and a length of 7.00 m. It is displaced through an angle of 9.0° and then released. Using the analysis model of a particle in simple harmonic motion, calculate the following. (Give your answer to the thousandths place.) (a) What is the maximum speed of the bob? WebAssign will check your answer for the correct number of significant figures. m/s (b) What is the maximum angular acceleration of the bob? WebAssign...
The Ka of lactic acid, HC3H5O3, is 1.4 ✕ 10−4. (a) Suppose buffer #1 is prepared using 40.0 mL 0.1 M HC3H5O3 and 60.0 mL 0.1 M C3H5O3− to give a final volume of 100.0 mL. What is the pH of this buffer? WebAssign will check your answer for the correct number of significant figures. 4.19 Incorrect: Your answer is incorrect. (b) Suppose a buffer #2 is prepared using 60.0 mL 0.1 M HC3H5O3 and 40.0 mL 0.1 M C3H5O3−...
1.The pH of a 2.65×10-3 M solution of a weak base is 9.17. Calculate pKb for this base to two decimal places. 2.Determine the mass (in g) of sodium butanoate (NaC3H7COO) that must be added to 78.9 mL of 0.609 M butanoic acid to yield a pH of 6.43. Report your answer to 3 significant figures. Assume the volume of the solution does not change and that the 5% approximation is valid.
Calculate the molarity (M) of 155.4 g of H2SO4 in 1.230 L of solution. Express your answer to four significant figures. Please write so I can understand what you wrote.
Calculate the pH of a buffer solution that is composed of 0.200 M HBrO and 0.348 M NaBrO. Ka for HBrO is 2.3 x 10-9. Enter a numerical value in the correct number of significant figures.