1. Determine the mass of 6.022 X 10^23 number of N2 molecules.
2. Calculate the number of particles in- (i) 8 g of O2 molecules (ii) 2.5 mol of calcium atoms. 3. What is the mass of 2.5 mol of Methane? 4.Find the mass of one molecule of water. 5.Calculate the number of water molecules and number of oxygen and hydrogen atoms in a drop of water containing 0.03 mol of water. 6. Calculate the actual mass of one atom of carbon if 12 grams of Carbon contain one mole of Carbon. 7. Calculate mass of Nitrogen (N2) which contains same number of molecules as are present in 4.4 grams of Carbon-di-oxide (CO2). 8.Atomic mass of gold is 197 u. How many moles of gold are present in an ornament containing 88.65 grams of gold? 9. How many moles of SO2 have same mass as 3 moles of oxygen? 10. A glass of water contains 5 mol of water. How many molecules of water arepresent? 11. What is the mass of a formula unit of Na + C l - ? 12. How many atoms of Silver are present in a silver wire weighing 5.4 grams? 13. Calculate the ratio of molecules present in 16 g of methane and 16 g of oxygen. 14. Convert into mole. (a) 12 g of oxygen gas (b) 20 g of water (c) 22 g of carbon-dioxide. 15. Determine the number of bromide ion in 0.2 mole of Mg Br2. th Mole concept numerical problems solved-9 Download File 9th Mole concept numerical problems solved-10 Download File Class 9 Atoms and molecules solved CBSE Papers New links More Problems based on mole concept 9th Atoms and Molecules - 1. Mole Concept and Problems based on mole concept 2. Numerical Problems based on mole concept 9th Chemistry 3. Numerical based on mole concept by ChemistryAdda
188 Comments
jyoti
19/12/2011 09:02:08 am
nice!!!!! :)
Reply
Bhavi
13/1/2016 07:44:39 pm
Kk its good by where are the answers.... Hell man!!! How to tally!! 🏼😢😢😢😤😤
Reply
Abhinav
26/1/2016 07:47:47 pm
Ya very true.
WHITE SHADOWWWW
2/11/2016 09:45:10 pm
YOU CALL YOURSELF A SCIENCE STUDENT WHEN NOT EVEN TO SOLVE SUCH EASY QUESTIONS!?!
Satyam
20/11/2016 09:01:47 pm
Khud kro solve and be confident to ur answers
Abhijeet mishra
22/12/2016 03:53:37 pm
Aata nahi hai kya
Anurag
4/3/2017 10:04:59 pm
Tu kam Bol jada pitegi
nOmad
15/3/2017 05:51:50 pm
mjknjbhbjjjhvvvvvvvvvvvvvvvjjjjjjjjjjjgggggggggggggkugb
Ashutosh
25/3/2017 06:43:42 am
Sir answer likhna bhul gaya
Yashasvee
14/4/2017 11:03:23 am
U should know
Shrey
6/7/2018 05:19:25 pm
There is a pdf file download for answers. You can check it😊
ADITI MOGAL
27/9/2018 02:36:13 pm
Ya man where are the answers
bhavya
12/12/2018 01:11:27 pm
bc
Your mom said you are in a hurry
1/11/2020 08:32:46 pm
How to tally ans dam if they r easy question why aren’t u or any one in comment section write and send it "...... excuse me white shadow u do and share . Query is query https://jsuniltutorial.weebly.com/uploads/7/8/7/0/7870542/9th_mole_concept_numerical_problems_solved-10.pdf
Tera baap
24/1/2021 07:39:35 pm
Fart
akshara
28/12/2016 05:53:19 pm
bt there r no answers...
Reply
Debba
11/10/2017 07:57:16 pm
Yp true!! If there is no answer how wil we know itz correct or wrong!
Mantarsha
1/1/2018 06:05:51 pm
This means u r not confident
xugfhu
2/2/2022 11:39:10 am
https://jsuniltutorial.weebly.com/uploads/7/8/7/0/7870542/9th_mole_concept_numerical_problems_solved-10.pdf
Ankush
16/2/2017 05:31:26 pm
Worst ever seen
Reply
Bla
24/9/2017 05:51:16 pm
Hmm
Yuklo7
25/6/2022 06:21:10 pm
Chootiye
Aman
20/3/2017 11:06:51 am
Thanxx
Reply
Pragati
20/12/2020 09:05:16 pm
Thanks it were useful.......I got the answers from the google.....thanks for these
Unknown
13/10/2017 01:52:14 pm
Chup
Reply
Anshul
15/2/2018 11:28:59 pm
you cannot see there is a pdf file for the answer
Reply
Abhishek choudhary
2/5/2020 09:31:44 am
It's very very important
Reply
ARYAN
10/4/2021 04:20:13 pm
YOU ARE ALSO
Reply
Sal
11/2/2022 06:45:58 pm
Hshhs
Muskan
22/10/2021 09:21:40 pm
Nice
Reply
įµįį±Ļ®ź
ź
Š
18/11/2021 02:01:15 pm
Nice & Well for exam practice
Reply
nik
6/1/2022 07:27:20 pm
i think they should also give answer to tally a
Reply
prajyot
23/1/2012 09:50:39 am
The student community is grateful to jsunil tutorials for such a wonderful website and precise notes on each chapter.
Reply
arya
17/11/2016 06:41:53 pm
correct
Reply
arya
17/11/2016 06:43:12 pm
answer to deta bhai
Akshat
11/1/2017 04:51:28 pm
Yes tfue
Reply
eva eco
8/2/2012 12:21:03 pm
very nice numericalss,thanx for posting them....dis helps alot
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sayeeda
13/2/2012 11:45:30 pm
good and helpful questions...
Reply
12911
22/2/2012 08:56:24 am
not bad but answers should also have been there
Reply
121212
23/2/2012 04:14:45 am
answers??????
Reply
411999
8/3/2014 01:04:22 pm
exactly where r d ans.
Reply
cc
13/1/2016 10:37:53 pm
Good questions. It would have more good if answers were also there.
Reply
honey singh
23/2/2012 11:58:02 am
maft questionss.... thankss....
Reply
ayesha
5/5/2012 12:33:50 am
muje solve karne hai num?
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SUNIL GAVASKAR
3/12/2015 05:49:41 pm
JYADA UDDO MAT
Reply
angel
5/5/2012 12:37:02 am
yar mjhy samajj mai nai aarahe numerical easy h bt......i ca n solv it plx help me in pakao sub chem i am in cls 8....
Reply
24/5/2012 07:43:49 am
Good way of posting dear. it's really nice post. Thanks for sharing it dear.
Reply
umant
27/8/2012 03:01:23 am
Reply
ereewsfvd v
19/3/2014 01:34:28 pm
Reply
shreya
14/10/2012 01:35:07 am
good numericals!!!
Reply
ujjwal
16/10/2012 09:40:05 am
hi...
Reply
majnu
14/1/2013 06:00:37 am
lol
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rahi
24/7/2018 06:02:36 pm
👍
Reply
jinay
1/11/2012 06:39:00 am
it's amazinggg
Reply
reet
4/12/2012 11:46:57 am
what mass of oxygen gas will contain the same no. of molecules as 2.5 moles of chlorine gas?
Reply
bani
2/3/2015 03:11:24 pm
Apne aap karo.
Reply
shanaya
18/12/2012 11:01:09 am
good amount of numericals but show it in a good amount.........
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tt5u5uiio
18/12/2012 11:05:01 am
good amonut of numericals but show more no. of numerical it would be more better
Reply
Gokul
7/3/2013 08:39:06 am
Where r d solutions
Reply
Shaun
21/1/2018 01:48:50 pm
up ur ass
Reply
GAmer
19/4/2013 11:50:56 am
What mass of Nacl will have same no. of Cl as there are in 22.2gm of CaCl2 ??pls answer
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ubaidur rahman
26/5/2016 08:25:07 pm
117 g
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ubaid siddiqui
1/2/2017 11:52:48 am
23.4
jolly
17/6/2017 01:07:35 pm
58.5 gram Nacl
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krishna
26/11/2013 09:16:50 am
no answers.........questions should be a little more challenging to think rather than being difficult to calculate
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Shreya
4/10/2016 03:37:30 pm
Exactly..challenging numerical a shld be dere along with ans
Reply
1/12/2013 12:16:15 am
logic should be in questions+challenging to think.........................................
Reply
1/12/2013 12:26:07 am
the questions are exc..... &and ans are? question formation should improve.
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Trisha
8/12/2013 10:25:25 am
need more questions
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ashwin chary
9/12/2013 11:57:41 am
its ossum
Reply
aayush kumar
31/12/2013 10:49:13 am
good questions
Reply
bgkbvtd
7/8/2014 05:02:52 am
Reply
sidra
15/2/2014 05:50:55 am
where are the answers??
Reply
354354
8/3/2014 01:03:45 pm
Reply
kartik
9/3/2014 11:12:23 am
we can answer these question
Reply
parul
30/11/2014 11:21:33 am
ANMSWER IS 176.610 X 1023
Reply
MONA
22/2/2018 07:59:28 pm
SO EASY
Reply
admin
9/3/2014 11:13:33 am
nice
Reply
ali
6/5/2014 03:04:57 am
it is a good thing for students
Reply
5/3/2015 02:55:14 am
that is lame, some dumb people don't study n they blame the people who want to make them study and then they bluff
Reply
Jully
26/2/2016 09:46:11 pm
Exactly Charlie ! 27/1/2022 01:10:27 pm
ikr charlie i agree toatally like come on u rspreding hate on the comment seciton like what in the heck is your problem dont wanna studdy let everyone else study like let us mind ur own buissness shove ur future down the gutter to those who r wanting answers that means that you are not confident on your answers so to all those who are using vulgur launguage out here commenting like that , it is very bad and immature of you . Just beacuase no one is stoping u that does not mean you falunt some words to show ur stupid voca in the world of bad words this is a study site not a site to use bad words .pls this is no joke it is chemistry learn to respect the subject you wll soon fail on in the final exams idiots LET US STUDY! WHOSE WITH ME SPEAK UP WE ARE ANONYMOUS HERE!!! COME ON GUYS !!!
pritu
3/12/2014 08:48:59 am
nice ques but I require the answers
Reply
vinayak
27/12/2014 11:24:47 am
Too easy!! Want little bit more tough
Reply
Aakriti
9/1/2015 08:13:42 am
it is a nice website
Reply
vishal
20/1/2015 06:08:37 am
they r vry vry easy.....post some hard one please
Reply
Archana
26/1/2015 10:07:48 am
plz post d ans
Reply
27/1/2015 11:42:38 am
idiate fucking bastard. where is the answer bitch???? :)
Reply
Y
16/12/2016 06:18:41 pm
Saale
Reply
sandra
23/2/2015 01:36:38 pm
thankyou so much for such questions
Reply
yaar questions tuche h
2/3/2015 03:22:50 pm
Reply
bani
3/3/2015 02:38:01 am
Such easy questions jsunil tutorial but where are the answers .Should I sent C.I.D for solving the case.
Reply
veena
3/3/2015 12:01:12 pm
useful questions but unfortunatley no answers
Reply
345678
3/3/2015 01:27:32 pm
booringgg
Reply
sunil
3/3/2015 02:25:48 pm
this is nt at all plearent frm ur side ........user 345678
Reply
5/3/2015 02:52:19 am
No use without answers.... but
Reply
shruti
14/3/2015 02:52:29 pm
why? don't u have confidence in ur ans.
Reply
Updesh
8/3/2015 01:37:53 pm
Nice questions. They were really helpfull to me
Reply
shruti
14/3/2015 02:50:46 pm
wow.... ! it's really a amazing thing. i'm really thankful 2 u for these practice numerical.
Reply
xabc
21/4/2015 10:05:56 am
the answers pls
Reply
CrazyFoxTag
26/11/2015 10:28:34 pm
Pretty cool!! thnx a lot!!!
Reply
aniket
11/12/2015 01:08:58 pm
Please give the answer of the questions also
Reply
ayush
13/12/2015 04:49:03 pm
Nice but ans are missing. Ans??????
Reply
ayush
13/12/2015 04:52:58 pm
Mast ha ra parantu ans?????????
Reply
biori
5/1/2016 06:52:53 pm
Numericals are not so good and satisfactory.😥
Reply
harshil
14/2/2016 01:20:40 pm
good helpful
Reply
Manikany
28/2/2016 08:38:54 pm
Reply
PRIYA
2/3/2016 09:12:41 am
WITHOUT ANSWERS IT IS NOT USEFUL
Reply
Angshuman
3/3/2016 08:20:14 am
What nice questions but
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saatvik
4/3/2016 10:36:43 pm
So easy increase the std .man
Reply
ishika
2/5/2016 04:07:21 pm
Good question
Reply
ubaid siddiqui
27/5/2016 12:08:53 am
2 i) 1.5 x 10*23
Reply
priya
31/12/2016 10:26:50 am
thanks!
Reply
Akshat
11/1/2017 05:10:50 pm
In 2 1 part the complete answer is 1.5055*10 23
Reply
ubaid siddiqui
1/2/2017 01:17:35 am
1.5055*10 23
Akriti
26/11/2016 09:40:33 pm
Answers? How to tally ....plz.post the answers ...solution
Reply
kani
7/12/2016 09:51:48 pm
sooo gooooodd.....
Reply
Tatatatat
13/12/2016 06:46:32 pm
Ya... It's very helpfulll
Reply
payal
19/12/2016 03:10:29 pm
answers should be there
Reply
priya
31/12/2016 10:25:27 am
answers??
Reply
kaya
2/1/2017 09:26:45 pm
it would be great if there were answers...
Reply
Nandita
4/1/2017 09:03:06 pm
👍bit where r d answers??
Reply
aditya
10/1/2017 07:47:00 am
Good numericals
Reply
Sunil sahhab <ADMIN>
16/1/2017 08:43:26 pm
i will put answers guys
Reply
Kriti....
29/1/2017 08:23:36 pm
Sir kab daloge sirf one word answer to daalo so we can check ourselves bcoz these are really nice questions sir
Reply
Kriti....
29/1/2017 08:21:04 pm
Agree with all I HV solved all the quesstions and the calculation is too lengthy so I think we must hv . the answer key if not the solutions to check where we are going wrong...isn't that correct friends.. We can verify our answers over here too no.plz comment & let me know
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ubaid siddiqui
1/2/2017 01:07:01 am
1 ) 28g
Reply
Aditya Raj shrivastava
24/1/2018 04:06:24 pm
The question help me more to understand the mole concept
Reply
vrinda sharma
11/2/2017 01:38:56 pm
where r the ans
Reply
akshara
21/2/2017 09:46:33 pm
but no ans
Reply
Nancy
6/3/2017 12:00:25 pm
Where are the answers??
Reply
I rock
6/3/2017 08:20:55 pm
This is a really good website but there shudve been answers given too. Just saying .... well the questions are cool though..
Reply
Ayrus
14/3/2017 07:47:06 pm
Atomic mases should also be given to the elements
Reply
Ritushree
19/3/2017 12:57:26 pm
Worth☺
Reply
hgfghg
27/3/2017 04:17:24 pm
Get it done don't comment but studyhard but I am not a nerd
Reply
ashish raj
2/5/2017 10:41:15 am
this questions help me to recall class9
Reply
rahul singh
9/9/2017 03:48:08 pm
very nice question but easy
Reply
sana styles
9/11/2017 08:44:40 pm
NYC numericals.....thx
Reply
riya
6/1/2018 04:26:35 pm
thk he hai bt answer kaha hai bhai
Reply
riya
6/1/2018 04:27:02 pm
where is answer
Reply
Aditya raj ahrivastava
24/1/2018 04:05:25 pm
It helps more to understand mole concept
Reply
Ashu tomer
17/2/2018 06:13:48 pm
not answer
Reply
Sivanarayanan
11/5/2018 11:03:25 am
hai
Reply
ATHIRA
16/5/2018 11:47:54 am
HMMM...good..but answers???
Reply
Sex
29/12/2018 06:35:23 pm
Fuck
Reply
amongus
6/2/2022 07:20:47 pm
sussy
Reply
ReneƩ
11/1/2021 04:46:28 pm
1.28g
Reply
YouBee
24/2/2021 01:58:20 pm
Decent questions 👌
Reply
SAMEER NARAYAN
18/4/2021 01:21:41 pm
Madhar chod where is the answer
Reply
27/1/2022 01:01:17 pm
fisrt of bitch it is madar chod not madhar chot second off
Reply
chutiya #27
6/2/2022 07:24:25 pm
Good roasting u gavehim. You are right
Misbah Sultan
26/12/2021 07:07:30 am
It's really good and helpful for me😃
Reply
27/1/2022 01:01:05 pm
ikr briliant at last someone said the truth the commebnt section is full of hate like wtf bishes comoon
Reply
6/2/2022 07:20:27 pm
Hi my name is sussy ramesh, i like sus amongus forntie game, mole maths concept is going to be very good. i becoem scientist in sus
Reply
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4/3/2023 09:55:36 am
Thanks for your good and useful information. Zigya is a very good website for standard (class) CBSE, ICSE and all State Boards textbook solutions for all subjects Class 8 to 12. https://www.zigya.com/
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