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For each of the following pairs of elements state whether the binary compound they form is likely to be ionic or covalent as well as write the empirical formula and name of compound-I and Cl-Mg and F
Calculate the pH during the titration of 30.00 mL of 0.1000 M KOH with 0.1000 M HBr after 30.26 mL of the acid
What molar ratio of acetic acid to sodium acetate is required to create a buffer solution having a pH of 4.84 at 25°C? Ka for HC2H3O2 is 1.8 × 10-5.
describe how to convert between the mass and the number of moles of a substance.show how you convert 4.5 moles h2o to
Descrbe the pH of a buffer soluton consisting of 100mL containing 0.1M CH3COOH and 0.125 CH3COO-, both before and after the additon
A voltaic cell made of a Cr electrode in a solution of 1.0 M in Cr^3+ and a gold electrode in a solution that is 1.0 M in Au^3+. a) Provide the hald cell reactions for each of the electrodes.
A 25.0 mL sample of a solution of the weak base aniline, C6H5NH2, requires 25.67 mL of 0.175 M HCl to reach the equivalence point. (Kb for aniline = 4.0 x 10-10)
If 67.0 mL of 0.119 mol/L NaOH(aq) and 35.0 mL of 0.193 mol/L HA(aq) are mixed, then what is [HA] at equilibrium? Assume that HA is a weak monoprotic acid with pKa=6.23 at 25oC.
how many moles of co2 when 15.5 ml of a 3.00 m hci reacts with excess caco3?the calcium carbonate in limestone reacts
Determine the ph ( to 1 decimal place) of a slution prepered by adding 125ml of 0.759M acetic acid to 10.3g of sodium acetate. the pKa of acetic asid is in table 10.2. Assume the volume of the solution does not change?
Calculate the percent by mass of zinc in the post-1982 pennies using following information: the total mass of each penn is 2.500 g, the density of copper is 8.96 g/mL
the first order decomposition of N2O5 at 238 K has a rate constant of 1.70 * 10-3. If the initial concentration of N2O5 is 2.88M,
Suppose that in changing samples, a portion of the water in the calorimeter weere lost. In what way, if any, would this change the heat capacity of the calorimeter?
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