Mole ConceptHard
Question
The fractional abundance of Cl35 in a sample of chlorine containing only Cl35 (atomic weight = 34.9) and Cl37 (atomic weight = 36.9) isotopes, is 0.6. The average mass number of chlorine is
Options
A.35.7
B.35.8
C.18.8
D.35.77
Solution
Average mass number = 0.6 × 35 + 0.4 × 37 = 35.8
Create a free account to view solution
View Solution FreeMore Mole Concept Questions
The number of hydrogen atoms in 0.9 g glucose, C6H12O6, is same as...The geometry with respect to the central atom of the following molecules are : N(SiH3)3 ; Me3N ; (SiH3)3P...Four groups of students are studying with different samples of alkali metal halides as given below. Group A: NaCl, Group...The density of 3M sodium thiosulphate is 1.25 g/ml. Identify the correct statements among the following :...Two elements A and B combine to form compound X and Y. For the fixed mass of A, masses of B combined for the compounds X...