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- At a pH of 7.40, the carbonic acid ratio is ________. a. 35:1 b. 4:1 c. 20:1 d. 3:1Concentration Buffer solution pka Desired ph 1 0.50 M Phosphate 2.12 2.0 2 0.50 M Phosphate 2.12 3.0 3 0.50 M Acetate 4.70 5.0 4 0.50 M Phosphate 7.21 7.0 5 0.050 M Phosphate 7.21 7.50 6 0.010 M Phosphate 7.21 8.0 7 0.50 M Phosphate 12.32 12.01. Similarities between Colloidal and Crystalline Precipitate 2. Calculate the 96 Ag(m/m) given the following: a. Ore sample containing Ag= 2.0770 g b. After precipitating using BaCl2, the mass of AgCl obtained = 0.7150 g
- Determine the fluoride ion concentration for a saturated solution of magnesium fluoride. K sp = 7.4 x 10-11Explain the principles behind the melting curve and how this helps determine G+C content. Include an explanation of the components of the curve and how one would interpret a melting curve.Based on this video https://www.youtube.com/watch?v=rKng5-ij6kQ Provide a schematic diagram for the Iodine’s test methodologies in determining the presence of carbohydrates. Also, give the basic principle for the test.
- (i) MnO is basic whereas Mn207 is acidic in nature. Why? (ii) Transition metals form alloys. Why? (iii) Complete the following equation: 2MnO4 + 4KOH + O2 ———>Combining 0.304 mol Fe2O30.304 mol Fe2O3 with excess carbon produced 11.6 g Fe.11.6 g Fe. Fe2O3+3C⟶2Fe+3COFe2O3+3C⟶2Fe+3CO What is the actual yield of iron in moles? What is the theoretical yield of iron in moles? What is the percent yield?A dietary supplement contains 5000 IU per capsule . If the bottle recommends 2.00 capsules per day , how many IU per week are recommended?