Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
12.6k views
in Atomic Structure by (49.4k points)
closed by

(1) Define one mole, illustrate its relationship with Avogadro constant, 

(2) Calculate the number of moles in: 

(i) 12.044 x 1023 atoms of carbon 

(ii) 64g of oxygen atoms 

(iii) 66g of carbon dioxide molecules. (Atomic masses O = 16, C = 12)

1 Answer

+1 vote
by (48.1k points)
selected by
 
Best answer

(1) One mole of any species (atoms, molecules, ions or particles) is that quantity in number which has a mass equal to its atomic or molecular mass (in grams). The number of particles (atoms), molecules or ions) present in 1 mole of any substance is fixed, with a value of 6.022 x 1023. This number is called Avogadro constant or Avogadro number.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

...