Six chemists were seated around a table.Each was a specialist in a major field o
ID: 762623 • Letter: S
Question
Six chemists were seated around a table.Each was a specialist in a major field of chemistry; Bill,Richard,Barbara,Alice,James and Tom were each (not respectively and not seated in the listed order),an organic chemist,an analytical chemist an inorganic chemist,a physical chemist,a biochemist and a polymer chemist. Each chemist had in front of him or her a sealed jar of a chemical whose molecular weight was identical to that chemist's age. Identify the name field of specialty,and age of each chemist. You must do all six calculations based on clues given to receive full credit. CLUES: 1. The analytical chemist noted that the chemical in front of Richard had a rate of effusion twice as slow as methane,mw=16. 2. The biochemist,a woman had a compound whose empirical and molecular formula were identical and was composed of 81.82 % C and 18.18 % H. By mass. 3. The woman sitting on Bill's right had a liquid whose vapor pressure was lowered 4.0 % when 0.10 mole of sugar was dissolved into 84.0 g of the liquid. 4. Tom,the polymer chemist;was 5 years older than Alice. When 4.0 g of Tom's chemical (non-electrolyte) was dissolved in 20.0 g of water,the solution boiled at 102.6 C (k for water= 0.52 C/m). 5. The inorganic chemist, James,noted that Bill was not a physical chemist,and Bill was 2 years older than the analytical chemist;0.2368 g of Bill's chemical (a solid monoprotic acid) was able to neutralize 8.0 mL of 0.40 M calcium hydroxide. 6. James,the youngest,had a 2-carbon hydrocarbon. When a portion of it was burned in oxygen,52.8 g of carbon dioxide and 10.8 g of water were produced.Explanation / Answer
No 2. appears to be C3H8 or propane. No 6. looks like ethyne, C2H2 (analytical chemist ) alice is 44 and a Biochemist. barbara is 37 and a Physical Chemist james is 26 and an Inorganic Chemist bill is 40 and a Polymer Chemist richard is 64 and an Organic Chemist