To determine the concentration of x in an unknown solution, 1.00 ml of 8.80 mm s was added to 5.00 ml of the unknown x solution and the mixture was diluted to 10.0 ml. after chromatographic separation, this solution gave peak areas of 5949 and 4555 for x and s, respectively. a) determine the concentration of s in the 10.0 ml solution. b) determine the concentration of x in the 10.0 ml solution. c) determine the concentration of x in the unknown solution.

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6