For the protons labeled Ha and Hb in the structure, predict the characteristics of their signals in the H1 NMR spectrum: the approximate chemical shift, the splitting pattern, and the integration value. A carbon is bonded to two methyl groups and two ethyl groups. The C H 3 protons in the ethyl group are labeled as A and the C H 2 protons in the ethyl group are labeled as b. The approximate chemical shift of Ha is 5 to 6 ppm 1 ppm 3 to 4 ppm 1.6 ppm 2 ppm 1.3 ppm The approximate chemical shift of Hb is 1.3 ppm 3 to 4 ppm 1 ppm 5 to 6 ppm 1.6 ppm 2 ppm The expected splitting pattern of Ha is quintet quartet doublet multiplet singlet triplet The expected splitting pattern of Hb is doublet multiplet quartet triplet singlet

200. ml of 3.00 m nacl solution is diluted to a final volume of 500. ml. what is the molarity of the final solution?

You have a sample of a gas that occupies a volume of 17ml at -111 degrees celsius. what volume does the sample occupy at 88 degrees celsius? show all work asap

Nconcentration refers to the molar concentration of an ion in solution. it may be identical to, or greater or less than, the molar concentration of the compound containing the ion that was used to make the solution. for soluble salts, the molarity of a particular ion is equal to the molarity of that compound times the subscript for that ion. for example, 1 m of alcl3 is 1 m in al3+ and 3 m in cl−. 1 m of (nh4)2so4 is 2 m in nh4+ and 1 m in so42−. part a what is the concentration of k+ in 0.15 m of k2s? view available hint(s) nothing m m part b if cacl2 is dissolved in water, what can be said about the concentration of the ca2+ ion? view available hint(s) if is dissolved in water, what can be said about the concentration of the ion? it has the same concentration as the cl− ion. its concentration is half that of the cl− ion. its concentration is twice that of the cl− ion. its concentration is one-third that of the cl− ion. part c a scientist wants to make a solution of tribasic sodium phosphate, na3po4, for a laboratory experiment. how many grams of na3po4 will be needed to produce 550 ml of a solution that has a concentration of na+ ions of 0.700 m ? express your answer numerically in grams. view available hint(s) mass of na3po4 n a 3 p o 4 = nothing g provide feedback