Answer:
9.31%
Explanation:
We are given that
Mass of KBr=49.3 g
Volume of solution=473 mL
Density of solution =1.12g/mL
We have to find the mass% of KBr.
Mass =[tex]volume\times density[/tex]
Using the formula
Mass of solution=[tex]1.12\times 473=529.76 g[/tex]
Mass % of KBr=[tex]\frac{mass\;of\;KBr}{Total\;mass\;of\;solution}\times 100[/tex]
Mass % of KBr=[tex]\frac{49.3}{529.76}\times 100[/tex]
Mass % of KBr=9.31%
Hence, the mass% of KBr=9.31%
