Amining machine can dig out 15 yd3 of coal per minute and costs $35.00 per hour to operate. the density of coal is 4.8 g/ ml. the coal is 98% pure carbon. how much will it cost to dig out 5.0 tons of carbon?

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.

50.23 i believe is correct but don't quote me on that.