Advertisements
Advertisements
प्रश्न
Find the mass of 2 moles of nitrogen atoms.
Advertisements
उत्तर
Given moles on N atom = 2 moles
Gram atomic mass of nitrogen atoms = 14g
Therefore, 14g of nitrogen atoms = 1 mole of nitrogen atoms
So, 2 moles of nitrogen atoms = 14 × 2g of nitrogen atoms
Hence, 2 moles of nitrogen atoms weigh 28g.
APPEARS IN
संबंधित प्रश्न
Write the names of `"FeS"` compounds :
Write the names of `"Na"_3"PO"_4` compounds :
Fill in the blank
If an atom gains an electron, it is called an _______
Why is it not possible to see an atom even with the most powerful microscope ?
Fill in the following blanks with suitable words :
In water, the proportion of oxygen and hydrogen is .............. by mass.
How many times is a proton heavier than an electron?
What value has been given to the mass of this reference atom ?
Which has more atoms, 50 g of aluminium or 50 g of iron ? Illustrate your answer with the help of calculations.
(Atomic masses : Al = 27 u ; Fe = 25 u)
Give brief information of three subatomic particles with reference to electrical charge, mass and location.
Give scientific reason.
All the mass of an atom is concentrated in the nucleus.
Define the following term:
Atom
The electron shell ______ is nearest to the nucleus.
What is the contribution of the following in atomic structure?
Maharshi Kanada
Compare:
Chlorine atom and chloride ion, with respect to
Atomic structure
Electrical state
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of phosphorus
The smaller particles found in the atom is called ______.
State true or false. If false, correct the statement.
The basic unit of an element is molecule.
Define the following term with an example.
Non-metal
Which of the following statements made by Dalton has not undergone any change?
