Subjective Type

What is the mass of (in gram) of 1 atom of sodium?

Solution

The atomic mass of sodium=23g
mass of 1 mole of atom= mass of $$ 6.0223\times 10^{23} $$ (Avogadro's no.) number of atoms=16g

Hence, the mass of one oxygen atom= $$ \frac{Atomic \ \ mass \ \ \ of \ \ a \ \ \ mole\ \ \ of \ \ atom}{Avogadro's \ \ no.} $$

Hence, mass of 1 oxygen atom= $$ \frac{23}{6.022 \times 10^{23}}$$g.

Mass of 1 oxygen atom =$$ 3.81 \times 10^{-23}g $$

SIMILAR QUESTIONS

Atoms and Molecules

The average atomic mass of a mixture containing 79 mole % of $$_{ }^{24 }{ M }g $$ and remaining 21 mole % of $$_{ }^{ 25 }{ M }g $$ and $$_{ }^{ 26 }{ M }g$$, is 24.31. The % mole of $$^{ 26}{ M }g$$ in the mixture is :

Atoms and Molecules

The elements $$X$$ and $$Y$$ form two compounds, $$XY_2$$ and $$X_3Y_2$$. $$0.1$$ mol of former weighs $$10$$ g while $$0.05$$ mole of the latter weighs $$9$$ g. Find the atomic weight of $$X$$.

Atoms and Molecules

A certain compound has the molecular formula $$X_4O_6$$. Find the atomic mass of X if $$10$$ g of $$X_4O_6$$ has $$5.72$$ g X.

Atoms and Molecules

The electrons configuration of a dispositive ion $$M^{2+}$$ is 2, 8, 14 and its mass number is 56. The number of neutrons present is :

Atoms and Molecules

Find the atomic mass of an isotope of carbon that has 10 neutrons. What is the atomic mass?

Atoms and Molecules

The density of a gas is 10 times more than that of hydrogen. The molecular weight of gas $$X$$ is___________.

Atoms and Molecules

Calculate the atomic mass (average) of chlorine using the following data : % Natural Abundance Molar Mass $$\displaystyle ^{ 35 }{ Cl }$$ 75.77 34.9689 $$\displaystyle ^{ 37 }{ Cl }$$ 24.23 36.9659

Atoms and Molecules

Atomic masses of elements are usually fractional because:

Atoms and Molecules

Write true or false for the following statement: The relative number of kinds of atoms are varying in a given compound.

Atoms and Molecules

What is the mass (in grams) of 1 atom of oxygen?

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