What is the hydronium-ion concentration of a buffer
What is the hydronium-ion concentration of a buffer solution that is .25 M Na2HPO4 and .40 M NaH2PO4? For H3PO4, (Ka1=6.9x10-3), (Ka2=6.2x10-8) and (Ka3=4.8x10-13).
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A 5.96-g sample of homogentisic acid, a weak organic acid having Ka=4.0 x 10^-5, is dissolved in 35.0 mL of water and its pH is measured to be 2.20. What is the molar mass of homogentisic acid?
A flu epidemic starts by one infected person in an isolated population of N individuals. Find the number of infected people as a function of time. How long will it take to infect the entire population.
For a hydrogen atom, calculate the energy of a photon in the Balmer series that results from the transition n = 3 to n = 2. The Rydberg constant is 1.0974 × 107 m-1. (h = 6.6262 × 10-34 J·s and c = 3.00 × 108 m/s).
A) what is the max tension in the cable supporting the elevator? B) if the elevator was accelerating downwards at a rate of .2g, what is the tension in the cable supporting the elevator?
The coefficient of restitution between the sphere and member ABC is 0.5 determine immediately after the impact (a) the angular velocity of member ABC (b) the velocity of the sphere.
A 7.58 gram sample of benzoic acid, C6H5CO2H, is dissolved in 100 ml of benzene. The density of benzene is .879 g/ml. What is the molality of the benzoic acid?
Find the exit plane pressure, the exit plane Mach number, and the mass flow rate for the back pressures of 400 kPa, 200 kPa, and 100 kPa.
A compound of phosphorus and chlorine used in the manufacture of a flame retardant treatment for fabrics contains 1.20 grams of phosphorus for every 4.12 g. of chlorine.
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Describe the results, including any scores. Result: E6% Extraverted Action oriented, Outgoing, Expressive, Hands-On S17% Sensing Traditional,
Adler believed that your birth order determines, to a large extent, your personality. He stated that your traits reflect, somehow, how you have achieved
Prior to your taking this graduate HR law class you had heard of the term "gender stereotyping," but didn't know much about it.
Lifespan psychologists are unlikely to investigate both changes as well as consistencies that exist in different individuals'
You are a social worker working with foster children. You are making a home visit to Katie, age nine, and her foster family.
Problem 1: Identify a specific theory of cognitive or moral development, and summarize the major assumptions.
When Min decided to begin his supervised field experience, he applied at a company in his hometown that provided applied behavior analysis