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What is a confirmatory compound/ion?
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- Which of the Ksp expressions are correctly written? Zinc phosphate, Ksp = [Zn2+][PO43-] Lead (II) iodide, Ksp = [Pb2+]2[I-] Calcium fluoride, Ksp = [Ca2+][F-]2 Gold (III) chloride, Ksp = [Au3+][Cl-]Differentiate between the followings a. Effective Atomic Number and synergic effectIn atomic spectroscopy, analytes are atomized in a flame. Write notes on: (i) Flames, (ii) Furnaces and (iii) Plasma
- Vitamin B12 is a coordination compund with cobalt as its central atom. It contains 4.4 percent cobalt by masss and has a molecular mass of 1.3x10^3 g/mol. How many cobalt atoms are in a molecule of vitamin B12?Which sample has the largest volume densitites are aluminum 2.7 g.cm-3 and copper 9.0g.cm-3 (A) 1.0 g aluminum (B)5.0 g aluminum (C) 1.0g copper (D) 5.0g copperReferring to the posted calibration curve (image attached) ...A 2.345 g sample of a ruthenium ore was dissolved and diluted to 100.00 mL. 4.000 mL of this sample was removed, treated appropriately, and diluted to 50.00 mL. This solution has an absorbance of 0.320. Calculate how many grams of ruthenium (MW = 101.07 g/mol) were in the sample.Select one:1.6 1.3 51 52 1.2