A 4.77g sample of a solid containing Ni is dissolved in 20.0mL water. A 5.00mL aliquot of this solution is diluted to 100.0mL and analyzed in the lab. The analyzed solution was determined to contain 6.15ppmNi. Determine the molar concentration of Ni in the 20.0mL solution. concentration Determine the mass, in grams, of Ni in the original sample. mas Determine the weight percent of Ni in the sample. weight percent