Question

Relative molecular mass of CHCl3
= 12 + 1 + (3 × 35.5)
= 12 + 1 + 106.5
= 119.5
Relative molecular mass of (NH4)2 Cr2O7
= (14 × 2) + (1× 8) + (52 × 2) + (16 × 7)
= 28 + 8 + 104 + 112
= 252
Relative molecular mass of CuSO4· 5H2O
= 63.5 + 32 + (16 × 4) + 5(2 + 16)
= 159.5 + 90
= 249.5
Relative molecular mass of (NH4)2SO4
= (2 × 14) + (8 × 1) + 32 + (4 × 16)
= 28 + 8 + 32 + 64
= 132
Relative molecular mass of CH3COONa
= (12 × 2) + (1× 3) + (16 × 2) + 23
= 24 + 3 + 32 + 23
= 82
Potassium chlorate (KClO3)
= 39.1+ 35.5 + (16 × 3)
= 39.1+ 35.5 + 48
= 122.6
Ammonium chloroplatinate (NH4)2PtCl6
= (14 × 2) + (1 × 8) + 195.08 + (35.5 × 6)
= 28 + 8 + 195.08 + 213
= 444.08

Answer 1

Answer:

250 is answer dear friend