Written by students who passed Immediately available after payment Read online or as PDF Wrong document? Swap it for free 4.6 TrustPilot
logo-home
Exam (elaborations)

Class 12th chemistry questions

Rating
-
Sold
-
Pages
1
Grade
A
Uploaded on
05-09-2025
Written in
2025/2026

This question was very nice

Institution
Course

Content preview

THE ZONE OF CHEMISTRY ( mass by volume percentage) DPP

1.If you have 250 ml of a 5% (w/v) NaCl एक 2% (w/v) घोल बनाने के ललए 150 ml में
solution, how much salt (NaCl) is
present? ककतने ग्राम शक्कि लमलानी होगी
9. If the w/v% is 12% and solution
यदि 5% (w/v) NaCl घोल में 250 ml घोल है ,
volume is 250 ml, what is the mass of
तो इसमें नमक की मात्रा ककतनी है? solute?
2. How many ml of solution is needed to यदि w/v प्रततशत 12% है औि घोल की मात्रा
dissolve 20 grams of glucose to make a
10% (w/v) solution? 250 ml है , तो सॉल्यूट का द्रव्यमान ककतना
20 ग्राम ग्लक
ू ोज़ को ककतने ml पानी में घोलना होगा?
10. You need 5 grams of solute. If you
होगा जिससे 10% (w/v) घोल बने?
have a 20% (w/v) solution, how much
3. In an 8% (w/v) KCl solution with total volume is required?
volume of 500 ml, how much KCl is
present? एक प्रयोग में 5 ग्राम सॉल्यूट की आवश्यकता
एक 8% (w/v) KCl घोल में यदि कुल घोल की है। यदि आपके पास 20% (w/v) घोल है , तो
मात्रा 500 ml है , तो उसमें KCl की मात्रा ककतनी ककतने ml घोल की ज़रूित होगी?
11. How much salt is needed to prepare
होगी?
1 liter (1000 ml) of 0.9% (w/v) NaCl
4. 15 grams of urea is dissolved in 300 solution?
ml of solution. What is the % (w/v)
concentration? एक 0.9% (w/v) NaCl घोल को 1 लीटि (1000
15 ग्राम यरू िया को 300 ml घोल में घोला गया। ml) में तैयाि किना है। नमक की मात्रा ककतनी
घोल का प्रततशत (w/v) क्या है ? होगी?
5. A solution contains 10 grams of 12. How much water must be added to
glucose and 90 grams of water. If the 100 ml of a 10% w/v NaCl solution to
total volume is 100 ml, what is the dilute it to 5% w/v?
w/v%? एक 10% w/v NaCl घोल को 5% w/v NaCl में
ककसी घोल में 10 ग्राम ग्लूकोज़ औि 90 ग्राम बिलने के ललए उसमें ककतना पानी लमलाया
पानी है। यदि कुल आयतन 100 ml है, तो w/v िाए यदि प्रािं लिक मात्रा 100 ml है ?
प्रततशत क्या होगा?
6. How much NaOH is present in 500 ml
of a 25% (w/v) NaOH solution?
25% (w/v) NaOH घोल में 500 ml में NaOH BY:-
की ककतनी मात्रा है?
7. To prepare 500 ml of a 10% (w/v) S.k.shrivastav
CH₃COOH solution, how many grams of
CH₃COOH are required? MSc.(chem)
500 ml घोल तैयाि किने के ललए 10% (w/v)
CH₃COOH चादहए। आपको ककतने ग्राम 8538909073
CH₃COOH की ज़रूित होगी?
8. How much sugar is needed to make
150 ml of a 2% (w/v) solution.

Connected book

Written for

Institution
Secondary school
School year
2

Document information

Uploaded on
September 5, 2025
Number of pages
1
Written in
2025/2026
Type
Exam (elaborations)
Contains
Only questions

Subjects

$4.19
Get access to the full document:

Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF

Get to know the seller
Seller avatar
sumitkumar25

Also available in package deal

Get to know the seller

Seller avatar
sumitkumar25
Follow You need to be logged in order to follow users or courses
Sold
-
Member since
9 months
Number of followers
0
Documents
7
Last sold
-

0.0

0 reviews

5
0
4
0
3
0
2
0
1
0

Recently viewed by you

Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Working on your references?

Frequently asked questions