Asked by may
Silicon carbide is one of the hardest materials known. It is often known commercially as carborundum. Silicon carbide is used primarily as an abrasive for sandpaper and is manufactured by heating common sand (silicon dioxide, SiO2) with carbon.
- What mass of SiC should result when 1.00x10^3 g of sand is heated with excess carbon?
- What mass of C (in grams) was used to produce the mass of SiC you found above?
PLEAAASEEEE HELP!!!!
- What mass of SiC should result when 1.00x10^3 g of sand is heated with excess carbon?
- What mass of C (in grams) was used to produce the mass of SiC you found above?
PLEAAASEEEE HELP!!!!
Answers
Answered by
DrBob222
SiO2 + 2C ==> CO2 + SiC
mols SiO2 = 1000/molar mass SiO2.
Convert mols SiO2 to mols SiC.
Then g SiC = mols x molsar mass.
Do the same process fore calculating grams C needed.
mols SiO2 = 1000/molar mass SiO2.
Convert mols SiO2 to mols SiC.
Then g SiC = mols x molsar mass.
Do the same process fore calculating grams C needed.
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