हिंदी

What is the numerical value of Avogadro number ?

Advertisements
Advertisements

प्रश्न

What is the numerical value of Avogadro number ?

एक पंक्ति में उत्तर
टिप्पणी लिखिए
Advertisements

उत्तर

The numerical value of Avogadro’s number is 6.022 × 1023.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Atoms and Molecules - Very Short Answers [पृष्ठ १७२]

APPEARS IN

लखमीर सिंग Chemistry [English] Class 9
अध्याय 3 Atoms and Molecules
Very Short Answers | Q 3 | पृष्ठ १७२

वीडियो ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्न

An element has an atomic number of 11 and its mass number is 23. What is the arrangement of electrons in the shells? State nuclear composition of an atom of the element.


The atomic number of an element E is 16. The number of electrons in its ion E2– will be :


The number of electrons in an ion Y2+ is 10. The atomic number of element Y is most likely to be :


What name is given to this number ?


Which of the following has the maximum number of atoms ?


What mass of nitrogen, N2, will contain the same number of molecules as 1.8 g of water, H2O ?

(Atomic masses : N = 14 u ; H = 1 u ; O = 16 u)


If one gram of sulphur contains x atoms, calculate the number of atoms in one gram of oxygen element.

(Atomic masses : S = 32 u ; O = 16 u)


How many grams of magnesium will have the same number of atoms as 6 grams of carbon ?
(Mg = 24 u ; C = 12 u )


Classify each of the following on the basis of their atomicity.

  1. F2
  2. NO2
  3. N2O
  4. C2H6
  5. P4
  6. H2O2
  7. P4O10
  8. O3
  9. HCl
  10. CH4
  11. He
  12. Ag

Which has more number of atoms?

100g of N2 or 100 g of NH3


Compute the difference in masses of one mole each of aluminium atoms and one mole of its ions. (Mass of an electron is 9.1×10–28 g). Which one is heavier?


. A sample of ethane (C2H6) gas has the same mass as 1.5 ×1020 molecules of methane (CH4). How many C2H6 molecules does the sample of gas contain?


In the atom of an element X, 6 electrons are present in the outermost shell. If it acquires noble gas configuration by accepting requisite number of electrons, then what would be the charge on the ion so formed?


The atomic number of calcium and argon are 20 and 18 respectively, but the mass number of both these elements is 40. What is the name given to such a pair of elements?


Helium atom has 2 electrons in its valence shell but its valency is not 2, Explain


An element X has a mass number 4 and atomic number 2. Write the valency of this element?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×