default_background

Find the best tutors and institutes for Class 9 Tuition

Find Best Class 9 Tuition

Please select a Category.

Please select a Locality.

No matching category found.

No matching Locality found.

Learn Simple numerical problems

Mastering the chapter Atoms and Molecules in CBSE Class 9 Science isn't just about learning theoretical definitions; it involves translating abstract chemical concepts into real-world quantities through simple numerical problems. At this stage, students transition from learning what atoms are, to mathematically calculating their amounts. These numerical problems primarily focus on bridging the gap between the microscopic world of atoms and the macroscopic world we can measure, heavily utilizing fundamental concepts like molecular mass, formula unit mass, and the foundational mole concept.

The core logic behind these numericals lies in understanding the mathematical relationships between mass, moles, and the number of microscopic particles. The most crucial formula you will use is n = m / M, where n represents the number of moles, m is the given mass of the substance in grams, and M is the molar mass (the mass of one mole of that substance, expressed in g/mol). If the problem asks you to calculate the number of particles (atoms or molecules), you will use the formula n = N / N₀, where N is the given number of particles and N₀ is Avogadro's constant (6.022 × 10²³). Solving any of these numericals successfully requires identifying your given values, selecting the correct formula, and carefully executing the division or multiplication steps.

Solving Simple Numericals: Mole Concept Problem: Find the number of moles in 36g of Water (H₂O) Step 1: Given Mass (m) m = 36 g Step 2: Molar Mass (M) H₂O = (2 × 1u) + (16u) M = 18 g/mol Step 3: Apply Formula (n = m / M) n = 36 / 18 Result: n = 2 Moles

As illustrated in the step-by-step infographic above, solving a typical numerical problem involves a systematic and logical approach. First, we identify the given mass of the substance from the question (in this specific case, 36g of water). Next, we calculate the molar mass of the compound using the standard atomic masses of its constituent elements (Hydrogen = 1u, Oxygen = 16u, yielding exactly 18 g/mol for an H₂O molecule). Finally, by applying the formula n = m / M, we divide the given mass by the molar mass to discover that 36 grams of water mathematically equates to 2 moles. In your Class 9 school exams, these specific types of mole-concept problems are frequently tested, making it absolutely critical to memorize the atomic masses of common elements and practice these formulas.

If you find chemical equations, molar mass calculations, or the mole concept confusing, you are certainly not alone. Many students struggle initially with these mathematical applications in chemistry. To master these topics and boost your exam confidence, find experienced CBSE Class 9 Science tutors on UrbanPro. Whether you prefer one-on-one online tuition or interactive offline classes near you, UrbanPro connects you with verified educators who can break down complex numerical problems into easy, manageable steps ensuring you score top marks.


Other Concepts in Atoms and Molecules


Other Concept Videos for Simple numerical problems

Mole Magic: Measuring the Invisible video thumbnail

Mole Magic: Measuring the Invisible

CBSE - Class 9>Science>Atoms and Molecules>Simple numerical problems


Math Meets Molecules: Numericals Made Easy video thumbnail

Math Meets Molecules: Numericals Made Easy

CBSE - Class 9>Science>Atoms and Molecules>Simple numerical problems



Top Tutors who teach Simple numerical problems

(6)
topTutorTop Tutor
locationImg Burul Rd Burul, Burul
2 yrs of Exp
rsIcon 100 per hour
" Experienced in teaching profession more than 5 years"
Online Classes Online Classes
homeTutions Student's Home
regularClasses Tutor's home

I am a teacher of math. I am giving home/online/tutor home tuition since 2016. My key skills are computer language. I am b. Tech graduate. I can teach short tricks that can help students in their future life.

Skills: Mathematics , Social Science and more
Also teaches: Class I-V Tuition, Class 7 Tuition and more

(15)
topTutorTop Tutor
locationImg Ashok Vihar, Gurgaon
10 yrs of Exp 3 students
greenClock 205 hrs of classes completed
rsIcon 300 per hour
Experienced & Certified Maths Lecturer with 10+ years of teaching experience
Online Classes Online Classes

With a strong academic foundation in Mathematics, including an M.Sc. in Mathematics, B.Sc., BTC, and CTET qualification, I am a dedicated Mathematics educator committed to helping students build conceptual clarity, logical reasoning, and analytical problem-solving skills. I have been successfully teaching Mathematics for over 12 years through my coaching institute in Gurgaon, while also conducting engaging online classes for students across India and internationally. I teach students across CBSE, ICSE, NIOS, and State Boards, adapting my teaching methodology to suit each curriculum and the individual learning needs of every student. My teaching approach focuses on simplifying complex mathematical concepts through structured lesson planning, personalised instruction, continuous assessment, and interactive learning techniques. I believe every student can excel in Mathematics with the right guidance, consistent practice, and a strong conceptual foundation. I also specialise in Vedic Mathematics, helping students significantly improve calculation speed, accuracy, mental agility, and confidence in school, competitive, and entrance examinations. As an UrbanPro Super Tutor, I am recognised for consistently delivering high-quality teaching and maintaining excellent student and parent satisfaction. Over the years, I have helped hundreds of students achieve outstanding academic results while developing confidence and a genuine interest in Mathematics. My passion for teaching, commitment to academic excellence, and student-centred approach enable me to create an engaging, motivating, and result-oriented learning environment where every learner can achieve their highest potential. If you are looking for a dedicated and experienced Mathematics tutor who can help you achieve excellent results and build strong fundamentals, I invite you to book a demo class today. Let’s work together to make Mathematics simple, enjoyable, and rewarding for you!

Diksha Gupta

I am understanding her explain of sums very well. She is very good teacher. Her maths is very strong.

Skills: Mathematics
Also teaches: Class 8 Tuition, Class 7 Tuition and more

Akshay Aggarwal Class 9 Tuition trainer in Delhi
(316)
superTutorSuper Tutor
locationImg Badarpur, Delhi
12 yrs of Exp 68 students
greenClock 3835 hrs of classes completed
rsIcon 200 per hour
21st Century Tuitions in real.
Online Classes Online Classes
regularClasses Tutor's home

I am an experienced tutor with nine years of teaching under my belt. I hold a BSc degree in geography. My passion for teaching has always been my driving force. I take pride in the fact that I have helped many of my students to score well on their exams and achieve their academic goals. I have provided home tuition to students of grades sixth to tenth in maths, science, and social studies for nine years. I cater to CBSE board students only, except for chemistry, where I also take up ICSE and IB board. My classes are conducted online and offline, and I allocate one hour daily to each student. I follow the CBSE teaching pattern and ensure the NCERT syllabus is covered. My approach towards teaching is student-centric, where I focus on their individual needs and pace of learning. I understand that not all students have the same learning capabilities, so I ensure each student receives personalised attention. To make the learning experience more engaging and interactive, I use animations and PPTs in my classes.

Manisha Shrivastava

I enrolled my son for grade 9 math practice. And sir has really helped him understand the concepts he could never understand before. His confidence has grown and I have noticed remarkable improvement in his math skills. Sir is really patient and skilled.

Skills: Mathematics , Chemistry and more
Also teaches: Class 8 Tuition, Class 7 Tuition and more

(34)
topTutorTop Tutor
locationImg Ujhani, Budaun
7 yrs of Exp 2 students
greenClock 502 hrs of classes completed
rsIcon 500 per hour
Experienced and certified TGT Maths and Science with
Online Classes Online Classes

I am a TGT Maths teacher. I am giving online tution since 2019. I am certified in B.ed(Maths and Science). My key skills are problem solving, creativity and communication. I had an experience of 7 years in teaching ( Maths and Science).My accomplishments is to reorganized the things, innovations, practical learning and concept building and exploration of subject

Skills: Mathematics , Science
Also teaches: Class 10 Tuition, Class 7 Tuition and more

(11)
topTutorTop Tutor
locationImg Kurichimuttom, Kozhencherry
8 yrs of Exp 1 student
greenClock 379 hrs of classes completed
rsIcon 350 per hour
Paasionate teacher, Mathematics enthusiastic person
Online Classes Online Classes

Working as a Tution teacher for the last 8 years for all classes and taught almost 150+ students.

Skills: English , Mathematics and more
Also teaches: Class 8 Tuition, Class 6 Tuition and more

Find more Tutor for Simple numerical problems in your City


Other Subjects in CBSE - Class 9


FAQ

What is the meaning of Simple numerical problems?

It is a fundamental principle in Atoms and Molecules that explains the nature and characteristics of Simple numerical problems.

Why is Simple numerical problems important for CBSE - Class 9 exams?

This concept is crucial for the exams as questions related to Atoms and Molecules and specifically Simple numerical problems are very common. It helps secure marks in the section effectively.

Is Simple numerical problems part of the latest NCERT syllabus?

Yes, Simple numerical problems is an integral part of the CBSE - Class 9 NCERT Science syllabus. It is a key topic covered in the Atoms and Molecules chapter.

What are common mistakes students make with Simple numerical problems?

Students often miss the minute details or fundamental definitions of Simple numerical problems. Regular revision and practice are needed to master the nuances.

How should I approach learning Simple numerical problems?

Read the NCERT text thoroughly to grasp the theory. Create summary notes and flowcharts to retain the key points of Simple numerical problems.

How can UrbanPro help me understand Simple numerical problems better?

UrbanPro connects you with experienced Science tutors who can explain Simple numerical problems with simple examples. You also get access to doubt-clearing sessions and mock tests for better preparation.

Find Best Class 9 Tuition ?

Find Now »