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What is the difference between molecular mass and molar mass

Posted by Sanyam Jain 2 years, 9 months ago

CBSE > Class 09 > Science

1 answers

Sia ? 2 years, 9 months ago

Basis	Molecular mass	Molar mass
Definition	Molecular mass is the mass of a molecule of a substance. It is also known as Molecular weight.	Molar mass is the mass of 1 mole of a substance or Avogadro’s number of the molecules of that substance.
Calculation	It is calculated as the ratio of the mass of one molecule of the substance to the mass of one Carbon-12 atom.	It is calculated as the ratio of the mass of a substance to the amount of the substance.
Mathematical representation	Molecular Mass = Mass of one molecule of substance / Mass of one C−12 atom × 1/12	Molar Mass = Mass of the substance / Amount of the substance
Unit	Atomic mass unit (amu)	Kg/Mole or g/mole

ANSWER

What do you mean by sol

Posted by Saisamarth Patil 2 years, 9 months ago

CBSE > Class 09 > Science

4 answers

Lovepreet Kaur Kalsi 2 years, 9 months ago

Sol is a type of colloidal solution in which solute is liquid and solvent is solid

Gajal Patel 9Th A 2 years, 9 months ago

Correct ans= sol is the type of colloids in which dispersed phase *(solute) is solid and dispersed medium (solvent) is liquid Example=dye☺️

Gajal Patel 9Th A 2 years, 9 months ago

Sol is the type of colloidal solution , in which solute is water and solvent is solid

Atru Thrisharika 2 years, 9 months ago

Solution

ANSWER

1.Nucleus was discovered by 2. Who termed the coin protoplasm for the fluid substance of the cell

Posted by V A 2 years, 9 months ago

CBSE > Class 09 > Science

3 answers

Farhin Owaisee 2 years, 9 months ago

Nuclear was discover by Robert Brown and J.E purkinje say's that nuclear is responsible for carry Heridatery character

Anshika Singh 2 years, 9 months ago

(1)In Biology nucleus is discovered by Robert brown. (2)J.E purkinje

N. Gomathi 2 years, 9 months ago

1.Ernest Rutherford 2.J.E Purkinje

ANSWER

The outermost covering of a plant cell is

Posted by V A 2 years, 9 months ago

CBSE > Class 09 > Science

5 answers

Kundan Kumar 2 years, 9 months ago

???? ???? ???? ?? ?? ?????????

Devesh Kumar Say 2 years, 9 months ago

Cell membrane

Vipin Yadav 2 years, 9 months ago

Cell membrane

Rajesh Kumar 2 years, 9 months ago

Cell membrane

Itz_Khushi ❣️ 2 years, 9 months ago

Cellulose

ANSWER

Temporary mount of a tissue is made in

Posted by V A 2 years, 9 months ago

CBSE > Class 09 > Science

1 answers

Itz_Khushi ❣️ 2 years, 9 months ago

Temporary mount of a tissue is made in glycerine. Because glycerine does not dry easily

ANSWER

Name the state which is commonly used to study plant cells

Posted by V A 2 years, 9 months ago

CBSE > Class 09 > Science

1 answers

Itz_Khushi ❣️ 2 years, 9 months ago

Methylene blue

ANSWER

Human cheek cells are commonly stained with

Posted by V A 2 years, 9 months ago

CBSE > Class 09 > Science

2 answers

Mansi Panjwani 2 years, 9 months ago

Methylene blue

N. Gomathi 2 years, 9 months ago

methylene blue

ANSWER

Penicillin is not effective against common cold why

Posted by Hanni Paliwal 2 years, 9 months ago

CBSE > Class 09 > Science

2 answers

Lovepreet Kaur Kalsi 2 years, 9 months ago

Because antibiotics only fight against bacteria not viruses.

V A 2 years, 9 months ago

Because antibiotics only fight bacteria, and not viruses, they're usually ineffective against colds. Sometimes a cold may lead to a bacterial infection,

ANSWER

What are the functions of Golgi apparatus

Posted by Mohammed Haneef 2 years, 9 months ago

CBSE > Class 09 > Science

2 answers

Itz_Khushi ❣️ 2 years, 9 months ago

A golgi body , is also known as golgi apparatus , is a cell organelle that helps process and package protiens and lipid molecules, especially protiens destined to be exported from the cell

V A 2 years, 9 months ago

Golgi Apparatus functions include the storage modification and packaging of products in vehicles in some cases complex sugars may be made from simple sugars in the Golgi apparatus the Golgi apparatus is also involved in the formation of lysosomes

ANSWER

If one mole of carbon atoms weighs 12 grams , what is the mass (in grams) of 1 atom of carbon?

Posted by Santosh Patel Patel 2 years, 9 months ago

CBSE > Class 09 > Science

1 answers

Sia ? 2 years, 9 months ago

We have given that one mole of carbon atom weighs 12 g.
A mole is defined as exactly equal to 6.022 × 10²³ atoms.
So, we know that a mole of carbon contains 6.022 × 10²³ atoms.
Therefore, we can write the mass of 6.022 × 10²³ atoms = 12 g.
Using the unitary method to find the mass of 1 atom of carbon in grams. So, we can write as below-
So, now mass of 1 atom of carbon will be =12 / (6.022 × 10²³) = 1.993 × 10⁻²³ g
Hence, the mass in grams of 1 atom of carbon is 1.993 × 10⁻²³g.
If we have to find the mass of 2 atoms or n number of carbon atoms, the same way we can proceed to find the mass in grams of the carbon atoms.

ANSWER

Which of the following compound contains only non metal

Posted by Baljinder Sandhu 2 years, 9 months ago

CBSE > Class 09 > Science

1 answers

Itz_Khushi ❣️ 2 years, 9 months ago

HF is only ionic compound that contains only non- metallic elements

ANSWER

Kise ka pass sample paper hai toh baje do science ka

Posted by Garvit Vijay Vargiya 2 years, 9 months ago

CBSE > Class 09 > Science

2 answers

Itz_Khushi ❣️ 2 years, 9 months ago

I have

Dhruvil Monty 2 years, 9 months ago

Mere pass

4Thank You

ANSWER

How a stars coalabs

Posted by Krishna ___ 2 years, 9 months ago

CBSE > Class 09 > Science

1 answers

Nivetha S 2 years, 9 months ago

Stars form from an accumulation of gas and dust, which collapses due to gravity and starts to form stars. ...

ANSWER

Sample paper mcq question

Posted by Solu Yadav 2 years, 9 months ago

CBSE > Class 09 > Science

2 answers

Itz_Khushi ❣️ 2 years, 9 months ago

Mere pass h but send kaise karu mujhe is par send karna nhi aata

Garvit Vijay Vargiya 2 years, 9 months ago

Muje bhi chaiya

3Thank You

ANSWER

What is viral diseas

Posted by Khushi Kumari 2 years, 9 months ago

CBSE > Class 09 > Science

1 answers

Ravleen Kaur 2 years, 9 months ago

Viral diseases are extremely widespread infections caused by viruses, a type of microorganism. There are many types of viruses that cause a wide variety of viral diseases. The most common type of viral disease is the common cold, which is caused by a viral infection of the upper respiratory tract (nose and throat). HPOE IT WILL HELP YOU THANKYOU

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Floation theory

Posted by Prem Yadavv 2 years, 10 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Boron and calcium

Posted by Naina Rawat 2 years, 10 months ago

CBSE > Class 09 > Science

2 answers

V A 2 years, 9 months ago

The symbol of boron is b and atomic mass of boron is 11

Aryan Choudhary 2 years, 10 months ago

How can i help you

ANSWER

Which cell organelle have their own DNA

Posted by Anish Prawah Dwivedi 2 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Vidit Jain 2 years, 10 months ago

Mitochondria and Plastids

Aryan Choudhary 2 years, 10 months ago

Mitochondria

Pragya Raturi 2 years, 10 months ago

Mitochondria & plastids

3Thank You

Sri Ram Sharma 2 years, 10 months ago

mitochondria

Rafik Mansuri 2 years, 10 months ago

Nucleolus

ANSWER

find Force of attraction between earth and moom ?

Posted by Amarjeet Kumar 2 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Itz_Khushi ❣️ 2 years, 9 months ago

F= 20.2 × 10^19N.

ANSWER

the growth in plant is

Posted by Rani Shukla 2 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Manoj Mishra 2 years, 10 months ago

Meristem 1) Apical : For the growth of apex. 2) Intercalary : For the growth of new parts of plants. 3) Lateral : For the growth of girth of the plant.

Rashi Nagar 2 years, 10 months ago

Meristematic

Ruchita Barman 2 years, 10 months ago

The growth of the plants is due to presence of meristematic tissue.

Amarjeet Kumar 2 years, 10 months ago

Mariestametic tissue

Radhika Soni 2 years, 10 months ago

Growth in plants occurs as the stems and roots lengthen. Some plants, especially those that are woody, also increase in thickness during their life span. The increase in length of the shoot and the root is referred to as primary growth, and is the result of cell division in the shoot apical meristem.

ANSWER

Who discovered the cell teyory

Posted by Anuj Kumar 2 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Ravidutt Sharma 2 years, 10 months ago

Schwaan and schliden

Rashi Nagar 2 years, 10 months ago

Schliden and schwaan

Amit Mamgain 2 years, 10 months ago

Schliden & Schwaan

Sweta Singh 2 years, 10 months ago

It is gave by two biologists Schleiden and Schwann

Itz_Khushi ❣️ 2 years, 10 months ago

A cell theory id discovered by famous German botanist - Matthias Schleiden and an english zoologist- Theodor Schwan

ANSWER

A ball is thrown up with a velocity of 20 m/s . What's the time of flight , neglecting air resistance?

Posted by Mayank 9232 2 years, 10 months ago

CBSE > Class 09 > Science

4 answers

अभिनव मिश्र 2 years, 10 months ago

0.5 secs

Saloni Shekhawat 2 years, 10 months ago

2 second

Rashi Nagar 2 years, 10 months ago

2 sec is right answer

Amit Mamgain 2 years, 10 months ago

4 seconds

ANSWER

Gravitation question exercise

Posted by Prachi Mahajan 2 years, 10 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Glory days. Discussions NorthNorthGlory days. Dishwashing soap

Posted by Prachi Mahajan 2 years, 10 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

How can you obtain Oxygen gas from air? Please answer my question

Posted by Arpan Singh 2 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Sweta Singh 2 years, 10 months ago

By using the process of Fractional Distillation

Bhagyashree Purushwani 2 years, 10 months ago

Fractional distillation

Pratibha Pramod Pillai 2 years, 10 months ago

By Fractional Distillation

Jai Mala Chaudhary 2 years, 10 months ago

Fractional distillation

Amrita Sahoo 2 years, 10 months ago

By Fractional Distillation

3Thank You

ANSWER

Gravation

Posted by Tejas T. 2 years, 10 months ago

CBSE > Class 09 > Science

4 answers

Tejas T. 2 years, 9 months ago

Itz_Khushi ❣️ 2 years, 9 months ago

Distance is a numerical measurement of how far apart objects or points are .in physics or everyday usage , distance May refer to a physical length or estimation based on other criteria .the distance from a point A to a point B is sometimes donated as (AB)

Itz_Khushi ❣️ 2 years, 9 months ago

Gravitational in mechanics , the all universal force of attraction acting between all the matter . on earth all bodies have weight or downward force of gravity , proportional to their mass, which earth's mass exerts on them. Gravity is measured by acceleration that it gives to freely falling objects

Ayushman Thakur 2 years, 10 months ago

What is distance