Question

WEDNESD
( rightarrow quad N a_{2} C O_{3} quad, ) Mol. weight
( Rightarrow 46+12+46 Rightarrow 106 mathrm{gm} )
( % ) composition of ( operatorname{Na}(operatorname{sodiam}) geqslant frac{46}{106} times 100 )
( % ) of ( N )
( 743 cdot 39 % )
12 af ( C(cos b cos )+frac{12}{106} times 100 Rightarrow 11 cdot 32 % )
( % ) of ( 0(cos y operatorname{sen})+frac{48}{106} times 100 Rightarrow 45 cdot 28 cdot 1 )

# Erample 9: Calculate the percentage composition of various elements in : Sodium carbonate, Na.co. = 23 x 2 + 1. = 106 +180 286 of web

Solution