$Q=2$ what is Percentage of $.$ w$/$w of $N{a}_{2}C{O}_3$ in unknown Soda ash sample which required $41\mathrm{.}83$mLof $0\mathrm{.}0998M$ of $HCl$ to turn the bromocresol green indicrtor from blue to green and $2\mathrm{.}01mL$ of $0\mathrm{.}0948M$ of $HCl$ to turn the bromeeresol to form blue to yellow post boil if $0\mathrm{.}4945g$ sample of the unknown soda ash was used. BCG correction volume is $0\mathrm{.}01mL$

$N{a}_{2}C{O}_3+2HCl2$NaCl$+C{O}_2+H_{2}O$