Question

40 g was weighed in a silica crucible. After heating for one hour at 110°C, the residue weighed 1.10 g. The crucible next was covered with a vented lid and strongly heated for exactly
7 minutes at 950–20°C. The residue weighed 1 g. The crucible was then heated without cover, until a constant weight was obtained. The last residue was found to weigh 0.21g.
Calculate the %'results of the above analysis.
O A Moisture = 10.24%
Volatile matter = 20.40%
Ash = 7%
B. Moisture = 26.14%
Volatile matter = 15.15%
Ash = 21%
OC Moisture = 19.02%
Volatile matter = 10.10%
Ash = 13%
OD Moisture = 21.42%
Volatile matter = 7.14%
Ash = 15%​

Answer 1

Answer:

this is a compound . magnesium, manganese, silver oxide, platinum