Iminodiacetic acid (ida) is often used in ion exchange resins as a way to remove heavy metals from industrial waste waters. it forms a 2: 1 complex with many heavy metals, with a high selectivity for divalent over monovalent ions. a 47.00 ml sample of 0.0724 m ni2+ was added to 47.00 ml of 0.179 m iminodiacetic acid (the completely protonated form is abbreviated as h3at) buffered at ph 7.00. given that α 2 is 4.6 x 10-3 at ph 7.00, what is the final concentration of ni2+ remaining in solution? ni2+ (aq) +2a2-(aq) 근 nia|-(aq) k,-2.00 x 1014 number m ni

What determines the average kinetic energy of the particles in a gas? a. the number of collisions b. the number of particles c. the size of the particles d. the temperature

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.

How many moles of oxygen gas are produced from the decomposition of six moles of potassium