3. The following data were obtained from the analysis of a coal sample:

analytical moisture, (%, mass.) 9.25
ash, (%, mass.) 4.95
sulfur, (%, mass.) 0.52
Calculate the mass fraction of ash and sulfur in dry coal.

If you cannot open the file or have any problems, do not rush to leave a negative review! Contact me and I will quickly help you solve the problem. After purchasing, please leave a positive review of the product :)