For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with pH. If the solubility does change, pick the pH at which you'd expect the highest solubility. You'll find Ksp data in the ALEKS Data tab. compound Does solubility change with pH? highest solubility pH = 5 | pH = 7. pH | pH = 8
NaBr Васо, Сасі, X 5 ? Formula BaCrO4 BaSO4 CaCO3 CaF2 Co(OH)2 CuBr CuCO3 Fe(OH)2 POCO3 PbCr04 PbF2 Mg(OH)2 Ni(OH)2 AgBroz A92CO3 AgCI Ag2 CrO4 SrCO3 ZnCO3 Zn(OH)2 AgBr Aucl Ksp 1.17x10-10 1.08x10-10 3.36x10-9 3.45x10-11 5.92x10-15 6.27x10-9 1.4x10-10 4.87x10-17 7.40x10-14 2.8x10-13 3.3x10-8 5.61x10-12 5.48x10-16 5.38x10-5 8.46x10-12 1.77x10-10 1.12x10-12 5.60x10-10 1.46x10-10 3.0x10-17 5.35x 10-13 1.77x10-10

A3.37-mg sample of protein was chemically digested to convert its nitrogen into ammonia and then diluted to 100.0 ml. then 10.0 ml of this solution was placed in a 50-ml volumetric flask and treated with 5 ml of phenol solution plus 2 ml of sodium hypochlorite solution. the sample was diluted to 50.0 ml, and the absorbance at 625 nm was measured in a 1.00-cm cuvette and found to be 0.486. for reference, a standard solution was prepared from 10.0 mg of nh4cl (molar mass = 53.49 grams/mole) dissolved in 1.00 l of water. then 10.0 ml of this standard was placed in a 50-ml volumetric flask, treated in the same manner as the unknown, and the absorbance found to be 0.323. finally, a reagent blank was prepared using distilled water in place of unknown, it was treated in the same manner as the unknown, and the absorbance found to be 0.076. calculate the weight percent of nitrogen in the protein.

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

In a covalent bond, two atoms are held together by the attraction between . the number of covalent bonds that an atom can form depends on the number of in the atom.