Question

Find no.of moles of 6.023×10 power 23 in sodium atoms

Answer 1

$\large{\underline{\underline{\red{\tt{\purple{\leadsto } AnsweR:-}}}}}$

Given that Number of atoms of Sodium is 6.023 × 10²³ . So , we can find number of moles as ,

$\boxed{\red{\bf{\bullet n(Moles)\:\:=\:\:\dfrac{n}{N_A}}}}$

$\tt Where$

• n is number of Atoms .
• $\sf N_A$ is Avogrado's Number.
• n(Moles) is Number of moles.

$\green{\tt Now\:put\: respective\:values}$

$\tt:\implies n=\dfrac{Number\:of\:Atoms}{Avogrado's\: Number}$

$\tt :\implies n=\dfrac{6.023\times10^{23}}{6.022\times10^{23}}$

$\tt :\implies n=\dfrac{\cancel{6.022\times10^{23}}}{\cancel{6.022\times10^23}}$

$\underline{\boxed{\red{\tt \longmapsto \:\:n(Moles)\:\:=\:\:1}}}$

$\boxed{\pink{\bf \dag Hence\: Number\:of\: moles\:is\:1.}}$

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$\underline{\pink{\sf{\leadsto MORE\:RELATED\: INFORMATION:-}}}$

$\green{\bf \orange{\bullet} Mole:-}$

It is a measuring unit which contains as many entities as contained in in 1/12 part of C- 12 isotope. its its value is equal to 6.022 × 10²³.

$\green{\bf \orange{\bullet} Avogrado's\: Number:-}$

The value of Avogrado's Number is 6.022 × 10²³.

It is used to find number of moles , Atoms , Molecules , Ions , etc.

$\green{\bf \orange{\bullet} Isotopes:- }$

Group of similar atoms having same atomic number but different mass number. Some examples are - Protium , Deutrium and Tritium are isotopes of Hydrogen.

$\red{\mapsto}$$\blue{\tt _6^{12}C\:\:\:,\:\:_6^{13}C\:\:,\:\:_6^{14}C}$

$\red{\mapsto}$$\blue {\tt _5^{10}B\:\:,\:\:_5^{11}B}$

$\green{\bf \orange{\bullet} Isobars:-}$

Groups of similar or dissimilar atoms having same mass number but different atomic number. Ex - Argon and Calcium.

$\red{\mapsto}$$\blue {\tt _{20}^{40}Ca\:\:,\:\:_{18}^{40}Ar}$

$\green{\bf \orange{\bullet} Isotones:- }$

Different elements having same number of neutrons are called isotones. For example ,

$\red{\mapsto}$$\blue {\tt _4^{9}Be\:\:,\:\:_5^{10}B}$

$\red{\mapsto}$$\blue {\tt _{11}^{23}Na\:\:,\:\:_{12}^{24}Mg}$

$\green{\bf \orange{\bullet}Isoesters:- }$

Set of species having same atomicity and same number of electrons are called Isoesters.

$\red{\mapsto}$$\blue{\tt CO\:\:\:,\:\:\:N_2\:\:\:,\:\:CO_2}$

$\green{\bf \orange{\bullet} Isoelectronic\:species:- }$

Atoms are ions having same number of electrons are called isoelectronic species.

$\large{\red{\sf Isoelectronic\:species}}\begin{cases}\blue{\tt O\overset{+2e}{\longrightarrow}O^{2-}}\\\blue{\tt F\overset{+1e}{\longrightarrow}F^{-}}\\\blue{\tt Na\overset{-1e}{\longrightarrow}Na^{+}}\end{cases}$

$\green{\bf \orange{\bullet} Isodiaphers:-}$

Atoms whose difference of neutrons and protons is same .

$\red{\mapsto}$$\blue{\tt _6^{12}C\:\:,\:\:_7^{14}N\:\:,\:\:_{20}^{40}Ca}$

$\red{\mapsto}$$\blue{\tt _3^{7}Li\:\:,\:\:_4^{9}Be\:\:,\:\:_{11}^{23}Na}$