Depict the predominance diagram

Reference no: EM13237817

Selenide can form hydrogen selenidic acid (H2Se(aq)), biselenide (HSe-(aq)) ion and selenide ion (Se2-(aq)). The equilibrium constants can be calculated from the attached thermodynamic data.a) If I add 0.001 moles of NaHSe to a kilogram of water [ΣSe(-II) = 10-3 m].Write the Mass Balance Equations, the Proton-Balance Equations and the Equilibrium Relations for addition of NaHSe to water.b) Draw the predominance diagram (the logarithm of species concentration versus pH). Locate the system points and the approximate pH that satisfies the Proton-Balance Equation for addition of NaHSe to water.c) List the solute species present at pH=5.3 and their approximate concentrations.d) What is the equilibrium constant at 70oC for:H2Se(aq) = HSe-(aq) + H+(aq)

Reference no: EM13237817

Questions Cloud

Define henderson-hasselbalch equation to calculate the ph : Use the Henderson-Hasselbalch equation to calculate the pH of a buffer that is 0.158 M HClO and 0.099 M NaClO. The Kb for HClO is 3.45 x 10^-7.

Contrast value-rarity-imitability and organizational aspects : Conduct a VRIO analysis of a successful firm or organization relative to one of its rivals. Contrast the value, rarity, imitability, and organizational aspects of its tangible and intangible resources and capabilities to those of its rival.

What is the magnitude of the trucks velocity : Relative to the ground, a car has a velocity of 16.8 m/s, directed due north, What is the magnitude of the truck's velocity relative to the ground

Determine what stratgey will the each firm follow : Following a decrease in variable cost that affects both firms, each firm must decide to lower price or to maintain price. If firm A maintains price and B maintains its price, each firm will have profits of $120 during the time period.

Depict the predominance diagram : Draw the predominance diagram (the logarithm of species concentration versus pH). Locate the system points and the approximate pH that satisfies the Proton-Balance Equation for addition of NaHSe to water.c) List the solute species present at pH=5...

What is the kinetic energy of the electron : Use the following values for mass and charge: an electron has mass me = 9.11×10-31 kg and charge -e, What is the kinetic energy of the electron in units of eV

How much of demand is measured of tickets per week : where quantity demanded is measured in thousands of tickets per week.Suppose the theater currently charges $6 per ticket, but is consider raising their prices to increase revenue.would you recommend that they raise prices

Explain the final volume of the solution : 15.0 grams of an unknown sugar was dissolved in water and the final volume of the solution was brought up to 1.00 L. The osmotic pressure of this solution was determined to be 2.44 atm at 25°C. Which of the sugars below was most likely the unknown..

Find speed of electron when it strikes second plate : A uniform electric field exists in the region between two oppositely charged plane parallel plates, find speed of electron when it strikes second plate

User Account

All Pages