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The Commercial Production of Phosphoric Acid, H3PO4, Can Be Represented

Question 6

Multiple Choice

The commercial production of phosphoric acid, H3PO4, can be represented by the equation 1500 g298 g302 g1000 g298 gCa3(PO4) 2+3SiO2+5C+5O2+3H2O310 g/mol60.1 g/mol12.0 g/mol32.0 g/mol18.0 g/mol3CaSiO3+5CO2+2H3PO4\begin{array} { l l l l l } 1500 \mathrm {~g} & 298 \mathrm {~g} & 302 \mathrm {~g} & 1000 \mathrm {~g} & 298 \mathrm {~g} \\\mathrm { Ca } _ { 3 } \left( \mathrm { PO } _ { 4 } \right) _ { 2 } + & 3 \mathrm { SiO } _ { 2 } + & 5 \mathrm { C } + & 5 \mathrm { O } _ { 2 } + & 3 \mathrm { H } _ { 2 } \mathrm { O } \\310 \mathrm {~g} / \mathrm { mol } & 60.1 \mathrm {~g} / \mathrm { mol } &12.0 \mathrm {~g} / \mathrm { mol } & 32.0 \mathrm {~g} / \mathrm { mol } & 18.0 \mathrm {~g} / \mathrm { mol }\end{array} \rightarrow 3 \mathrm { CaSiO } _ { 3 } + 5 \mathrm { CO } _ { 2 } + 2 \mathrm { H } _ { 3 } \mathrm { PO } _ { 4 }
The molar mass for each reactant is shown below the reactant, and the mass of each reactant for this problem is given above. Which substance is the limiting reactant?


A) H2O
B) C
C) O2
D) Ca3(PO4) 2
E) SiO2

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