A 6.26 g sample of a solid containing Ni is dissolved in 20.0mL water. A 5.00mL aliquot of this solution is diluted to 100.0mL as well as analyzed in the lab. The solution was determined to contain 5.16ppm Ni.
Find out the molarity of Ni in the 20.0mL solution.
Find out the mass in grams of Ni in the original sample.
Find out the weight percent of Ni in the sample.