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Calculate the pH and the pOH of an aqueous solution that is 0.050M in HCl (aq) and 0.065 M in HBr (aq) at 250C
Why is it important to be responsible to others on a personal, local, global, and digital level?
A buffer is prepared using the propionic acid/propionate acid-base pair for which the ratio (of acid to base) is 4.50. (a) Enough strong base is added to convert 27% of HC3H5O2 to C3H5O2-. What is the pH of the resulting solution
the peptide Phe-Val-Lys-Ser using the appropriate protease in a phosphate buffer solution at pH=7. What two species would actually constitute the phosphate buffer?
Hydroxyl radical (OH) is produced from the photolysis of H2O or through reaction with excited oxygen, H2O + hν --> H + OH or O* + H2O---> 2OH
How many hydrogens are in C16H?, which has 3 ring(s) and 8 double bond(s)? How many hydrogens are in C8H?O2, which has 2 ring(s) and 1 double bond(s)
Use the Nernst equation to calculate the expected potential in the battery in parts 2(d) and 2(e) when the following concentrations are present: [Cr2O72?] = 3.7 x 10?3 M ; [Cr3+] = 0.0112 M
Explain what mass of CsBr must be added to 0.500L of water (d=100g/mL) to produce a 0.655m solution? Explain what are the mole fraction as well as mass percent of CsBr
Chlorine-36 is a B emitter, with a half-life of 3.0*10^5years. How many beta particles are emitted in 1.5 min from a 5.4mg sample Chlorine-36?
Nickel and aluminum electrodes are utilized to build a galvanic cell. State the standard reduction potential for the nickel (II) ion is -0.26V and that of the aluminum (III) ion is -1.66V. Type the shorthand notation for this cell. Do not include ..
a 0.21 m3 drum contains 100 l of a mixture of several degreasing solvents in water. the concentration of
A mixture of ammonium chloride and sand is placed in an evaporating dish and massed at 56.246g. The mixture is heated, driving off the ammonium chloride and massed again
A sample of 54.7 g of HCl gas is dissolved to make 1L of solution. What is the molarity of the solution?
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