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1. If the base buret were not rinsed with NaOH prior to filling, would the calculated normality of the base be TOO HIGH, TOO LOW, OR UNAFFECTED? WHY?
2. If the vinegar buret tip were not filled with solution before its initial reading was taken, would the calculated normality of the acid be TOO HIGH, TOO LOW, ORUNAFFECTED? WHY?
3. The active ingredient in Philips Milk of Magnesia is Mg(OH)2, in Amphojel is Al(OH)3; and in Aka-Seltzer is NaHCO3. Write balanced net ionic equations showing how each neutralizes stomach acid. (You can answer this question because it is a review of the "IonicChemical Equations" lab you did in Chem 1 A)
a solution is prepared by mixing 50.0 ml of 0.17 m pbno32 with 50.0 ml of 1.9 m kcl. calculate the concentrations of
If the wavelength of the emission maximum from a small pinhole in an electrically heated container was determined at a series of temperatures as well as the results are given below. Deduce a value for Planck's constant.
Butyric acid, HC4H7O2, has a Ka of 1.51 x 10^-5. Calculate the pH of a solution of butyric acid where 15.2 g of the acid was added to water to make 1.5 liters of solution.
A sample of 2.0 grams of ammonia was placed in a 25.0 ml container and heated to 300 degrees C. After equilibrium was reached, the concentration of hydrogen was 1.58 moles/liter. What is the value of the equilibrium constant at 300 degrees C for t..
Calculate the total concentration of dissolved cadmium (i.e. sum of the concentrations of free Cd 2+ and Cd-chloride complexes) in a 0.1M NaCl solution that is in equilibrium with otavite at atmospheric PCO2 and a pH of 8.5. To what extent does ch..
What is the formula for the principle molecular or ionic species present in a aqueous solution of hydrogen bromide
The half -life of 14C is 5730 years. A sample taken for radiocarbon dating was found to contain 56 percent of its original 14C. What was the age of the sample? (*Hint: The decay follows first order kinetics).
Propose a mechanism involving a hydride shift or an alkyl shift for this solvolysis reaction. All compounds involved in each stage of the mechanism must be enclosed in a box, and each box must be connected to the next one with a straight arrow.
The ionization constant of water at 1 Celcius is 1.259 x 10^-15. What is the Ph of pure water at this temperature. H2O H+(positive ion)(aq) + OH-(aq)
the vapor pressure of nitrogen at several different temperatures is shown below.temperature k pressure torr65 130.570
(a) What is the product. (b) Provide a mechanism showing the formation of the product at a. (c) Suggest a more feasible synthesis condition for the conversion.
Suppose the mass spectrum of a hypothetical monatomic element X contains a signal at mass number 13 and another of identical height at mass number 15.
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