B.
129
d. 24 g
3. Sulfur dioxide (SO2) emissions from smokestacks are reduced by a "scr...
B.
129
d. 24 g
3. Sulfur dioxide (SO2) emissions from smokestacks are reduced by a "scrubbing" mechanism in which
SO2 gas reacts with crushed limestone (CaCO3) to produce a removable solid waste. The equation for
the balanced reaction and the molar masses of the reactants are shown below.
CaCO3(s) + SO2(g) - CaSO3(s) + CO2(g)
Compound Molar Mass (g/mol)
CaCO3
100.1
64.1
SO2
How many grams of CaCO3 are needed to completely react with 1250 g of SO2?
a
b.
625 g
1952 g
C 800g
d. 2500 g
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