What is the ph of a phosphate buffer
What is the pH of a phosphate buffer when [h2po4-1]=40mM and [hpo4-2]=3omM? assume the pKa for this titration is 7.2
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A 6.0-g sample of [Ni(H2O)6]Cl2 is dissolved in aqueous solution. If an excess of ethylenediamine (en) is added to the solution, solid [Ni(en)3]Cl22H2O forms. What is the theoretical yield of product from the reaction?
The gas ammonia can be decomposed to give 3.00 parts by mass of hydrogen and 14.0 parts by mass of nitrogen. What mass of nitrogen is obtained if 1.27 g of ammonia is decomposed?\
How many grams of hydrogen are necessary to react comletely with 50.0 g of nitrogen in the following reaction: N2+3H2 = 2NH3?
How many joules of energy are necessary to heat the steam from 100.0 degrees Celcius to 114.0 degrees celcius if the specific heat of steam 2.01J/g degrees celcius.
What external pressures have moved mainstream medicine to accept alternative therapies? Have any alternative therapies been proven to work as well as standard treatments?
Mr Burns wants to retire at age 100. Once he retires he wants to withdraw $1.2 billion at the beginning of each year for 8 years from an offshore account that will pay 23% annually. In order to fund his retirement, he will make 25 equal end of yea
Calculate the Ksp of lead iodide from the following standard electrode potentials, at 25 C oxidative -.126 redox -.365
An aqueous solution is prepared by diluting 3.30mL acetone, CH3COH3, (d= 0.789g/mL) with water to a final volumeof 75.0 mL. The density of the solution is 0.993 g/mL. what are the molarity and the molality of acetone in this solution?
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Describe the results, including any scores. Result: E6% Extraverted Action oriented, Outgoing, Expressive, Hands-On S17% Sensing Traditional,
You are a social worker working with foster children. You are making a home visit to Katie, age nine, and her foster family.
The purpose is to examine the psychological factors affecting how teenagers in an impoverished urban area spend their time outside of school using:
Examine historical literature to the most current period to see the growth of romanticism and EXISTENTIALISM. any major developments
When Min decided to begin his supervised field experience, he applied at a company in his hometown that provided applied behavior analysis
In our readings, we learn more about the nature versus nurture argument. For this discussion, I want you to go in depth a bit more and debate the importance
Lifespan psychologists are unlikely to investigate both changes as well as consistencies that exist in different individuals'