Question

53

Ibuprofen $1. What is the predicted labeled 22 A bem B) trigonal plane Derbedal El None of the Hewan bonds repentin CODINA o p 15. W would be the main 29310 ) 1.500 if you had 150 T rich 0.36 None of these 0. 5 8.2 /mol Catering NON NOIN Doncrease the UNOR a n d increase the temperature N o te the temperat GIVEN NO dece that olungarved electron cou A C tons is the correct one or gilliam DIN Note - AS GAMI

Answer 1

53)

1mole of platinum weighs it's gram molecular mass I.e. 195 gm and contain Avogadro number of atoms I.e 6.023*10²³ atoms

So

6.023*10²³ atoms weighs 195 gm of platinum

1 atom weighs 195/(6.023*10²³) gm of platinum

15*10²⁰ atoms weighs 195*15*10²⁰/(6.023*10²³)g=0.485 g of platinum

Option d is correct