Discuss when the acid is added
A buffer contains 0.1500 M KNO2 and 0.2000 M of HNO2. Describe the pH after the 0.0020 mol of HCL is added to the 250 ml of this solution.(Assume there are no volume changes when the acid is added.)
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Explain which of the three reagents used in your synthesis of Alum experiment was the limiting reactant (1.5 M KOH, 4.5 M H2SO4 or the Al)? Calculate the spectrographic electron configuration for Li?
Explain how would you prepare 150.0 ml of a buffer having a pH of 7.05 using solid sodium hydrogen phosphate and solid sodium dihydrogenphospate?
100.0 ml of a buffer consists of the 0.20 M NH3 and 0.01 M NH4Cl (pKb of NH3=4.75) Determine the change in pH of the solution after the 25.0 ml of 0.10 M of HI has been added?
Assume that the mean score on this test is 75.6 with standard deviation of 7.8. Assume also that the scores follow bell-shaped distribution.
Test at the 1% level the null hypothesis that population proportions are equal against the alternative that the higher proportion of French have a positive attitude towards car salesmen.
Determine the binding energy (in MeV/nucleon) for the following nuclides: Copper-63 ( which is having the atomic mass = 62.93960 amu)
Estimate the molarity of HClO4 when the 15.34ml of .2345 M NaOH is needed to reach the equivalence point for the titration of 10 ml sample of HCLO4?
Assume you're given data from survey showing the IQ of each person interviewed and IQ of his or her mother. That is all the information you have. Your boss has asked you to put together report showing the relationship between these two variables.
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Responses should be detailed and should reflect and explain concepts and terminology from the lesson in order to receive a score of 25.
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