LIVE Course for free

Rated by 1 million+ students
Get app now
JEE MAIN 2023
JEE MAIN 2023 TEST SERIES
NEET 2023 TEST SERIES
NEET 2023
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
31 views
in Chemistry by (43.4k points)
closed by
Which of the following correctly represents 360 g of water?
(i) 2 moles of `H_(2)O`
ii) 20 moles of water.
iii) `6.022 xx 10^(23)` molecules of water.
iv) `1.2044 xx 10^(25)` molecules of water.
A. (i)
B. I and iv
C. ii and iii
D. ii and iv

1 Answer

0 votes
by (40.8k points)
selected by
 
Best answer
Correct Answer - D
(d) (ii) `("Mass of water")/("Molar mass of water")`
`=((360 g))/((18 g"mol"^(-1)))=20 ` mol
(iv) 18 g of water represent molecules
`=6.022xx10^(23)`
360 g of water represent molecules
`=((6.022xx10^(23)))/((18g)) xx(360g)`
`=6.022xx10^(23) xx20 =1.2044xx10^(25)`

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.

Categories

...