Question

The relative molecular mass of Na S 0.5H.O is

(a) 250 amu

(b) 250 g

(c) 248 amu

(d) 248 g​

Answer 1

$\Huge\underline{\underline{\sf{\color{magenta}{Answer:-}}}}$

$\Large\sf {Atomic Mass:-}$

$\sf \red{Na=22u}$

$\sf \green { s=32u}$

$\sf \blue{O=16u}$

$\sf {H=1u}$

$\sf Na_{2}S_{2}O_{3}•5H_{2}O$

$\sf 23(2)+32(2)+16(2)+5(1[2]+16)$

$\sf 46+64+48+10+80$

$\sf \red{\boxed{ 248amu}}$

Answer 2

Answer:

$}ONa2S2O3•5H2O</p><p>\sf 23(2)+32(2)+16(2)+5(1[2]+16)23(2)+32(2)+16(2)+5(1[2]+16)</p><p>\sf 46+64+48+10+8046+64+48+10+80</p><p>\sf \red{\boxed{ 248amu}}248amu$