Moist coal contains 2.7% water.
Percentage of Moist free coal in moist coal is 97.3 %.
Let the weight of moist coal is 100 gm.
The weight of moist free coal is 97.3 gm.
Moist free coal contains 69.4% Carbon.
Let the weight of moist free coal is x gm.
Carbon in x gm of moist free coal is 69.4x/100 gm
Carbon in 1 gm of moist free coal is 69.4/100 gm.
Carbon in 97.3 gm of moist free coal is 69.4×97.3/100 gm.
Carbon in 97.3 gm of moist free coal is 67.5262 gm.
Carbon in 100gm of moist coal is 67.5262 gm.
Percentage of carbon in moist coal is 67.5262%.(Answer)
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