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Which of following contains maximum number of molecules? a.1 g Li, b.1g Au, c. 1 g Cu, d.1g He

Shivanshu 10th May, 2022

Dear aspirant !

Hope you are doing great ! You should know the formula first and that is n =N/Na where n is the no . Of moles which is equal to given mass / molar mass and N is the no. Of molecules asked in the question and Na

166 Views

100 atoms of A+ 100 molecules of B

Preetam Bhowmik 14th Jan, 2022

Hi!!!

Hope you are doing well.

100 atoms of A+ 100 molecules of B means 100 atoms of A will react with 100 molecules of B. Thus, both the reagents are present in stoichiometric amounts.

Hope you are clear now. Feel free to ask if you have any other queries.

133 Views

100 atoms of a100 molecules of b

Aditya 14th Jan, 2022

Hi aspirant,

To understand this we must understand the difference between an atom and a molecule. Atom is the smallest unit of ordinary matter that forms a chemical element which maybe solid-liquid or gas. The atoms are divided into three parts internally but that is not taken into general consideration

27 Views

justifie n=2 i.e molecules of benzoic acid forms dimer in organic phase using modified nernst law of distribution

Prachi Panda 24th Feb, 2022

Hello,

The seperation coefficients of benzoic acid in partially miscible two phase mixtures of (methanol + cyclohexane) were measured at the temperature of 293.15, 303.15, and 313.15 K. The inventive outcome show that the benzoic acid is more soluble in methanol than in cyclohexane and thus it makes the seperation

213 Views

Which of the following has maximum number of molecules? * 7gmN2 2gm H2 8gmO2 20gmNO2

Raj 28th Nov, 2021

Hello student ,

Generally 1 mole of a substance contains Avogadro Number of molecules that is 6.022 × 10^23 therefore

  1. 28g of N2 = 1 mole = 6.022×10^23 molecules.                             Therefore 7g of N2 = 7/28 = 0.25 mole =  6.022× 10^23/4 = 1.505×10^23 molecules .
  2. 2g of H2 = 1
43 Views

How can a material at a certain temperature have all of its molecules at the same energy?

Nitin Mereddy 16th Nov, 2021

A material at a certain temperature does not have all of its particles at the same energy. In the basic definition of the word, "temperature" is the average random motional (kinetic) energy of the particles of a material. (Thermodynamics gives a broader definition to temperature, but we don't need this

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