Question

What is the percentage of sodium in sodium carbonate compound❓​

Answer 1

Answer:

Percentage of sodium in sodium carbonate is 43.40%

Answer 2

$\huge{\underline{\sf Solution:-}}$

$\\ \sf\longmapsto Sodium\:Carbonate=Na_2CO_3$

$\\ \sf\longmapsto Molecular\:mass\:of\:Na_2CO_3$

$\\ \sf\longmapsto 2\times 23u+12u+3\times 16u$

$\\ \sf\longmapsto 46u+12u+48u$

$\\ \sf\longmapsto 106u$

☆Atomic Mass of Na=46u

We know that

$\boxed{\sf Mass\:Percentage \:of\:an\:element=\dfrac{Mass\;of\:that\:element\;in\:one\:mole\:of\:the\:compound}{Molar\:mass\:of\;the\:Compound}}$

$\\ \sf\longmapsto Mass\%\;of\:Na=\dfrac{46}{106}\times 100$

$\\ \sf\longmapsto \dfrac{4600}{106}$

$\\ \sf\longmapsto 43.40\%$