# A sample of $K _{2} SO _{4} \cdot Al _{2}\left( SO _{4}\right)_{3} .24 H _{2} O$ contains $6.4 kg$ oxygen. Calculate mass of sulphur (in gram) in same sample. (1) 1280 (2) 1000 (3) 128 (4) $12.8$

55 views
A sample of $K _{2} SO _{4} \cdot Al _{2}\left( SO _{4}\right)_{3} .24 H _{2} O$ contains $6.4 kg$ oxygen. Calculate mass of sulphur (in gram) in same sample. (1) 1280 (2) 1000 (3) 128 (4) $12.8$

by (15 points)

Potassium sulphate + aluminium sulphate = water

by (15 points)
Formula given on the screen