The question representing the production of tetraphosphorus trisulfide (P4S3), a substance used in some match hears, is 8P4 + 3S8 ---> 8P4S3. Determine if each of the following statements is correct. If the statement is incorrect, rewrite it to make it correct.
a. To produce 4 mol P4S3, 4 mol P4 must react with 1.5 mol S8.
b. With 4 mol P4 reacts with 4 mol S8, sulfur is the limiting reactant.
c. When 6 mol P4 and 6 mol S8 react, 1320 g P4S8 is produced.
he question representing the production of tetraphosphorus trisulfide (P4S3), a substance used in some match hears, is 8P4 + 3S8 ---> 8P4S3. Determine if each of the following statements is correct. If the statement is incorrect, rewrite it to make it correct.
a. To produce 4 mol P4S3, 4 mol P4 must react with 1.5 mol S8.
b. With 4 mol P4 reacts with 4 mol S8, sulfur is the limiting reactant.
c. When 6 mol P4 and 6 mol S8 react, 1320 g P4S8 is produced.
This is an exercise in using the coefficients.
a.
4 mol P4S3 is just half of what's in the equation; therefore, it should take 1/2 of the reactants and that mens 4 mols P4 and 1/2 mols S8. Thus a is true. The other are done the same way. If one of the other statements is false, juggle the numberrs to make it true. You may NOT change the equation.
a. The statement is incorrect. To produce 4 mol P4S3, according to the balanced equation, 8 mol P4 must react with 3 mol S8. Therefore, the correct statement would be: To produce 4 mol P4S3, 8 mol P4 must react with 3 mol S8.
b. The statement is correct. According to the balanced equation, 8 mol P4 reacts with 3 mol S8 to produce 8 mol P4S3. Since sulfur (S8) is needed in a 1:3 mole ratio with respect to phosphorus (P4), if only 4 mol S8 is available, it will limit the reaction and only 4 mol P4S3 can be produced.
c. The statement is incorrect. The balanced equation shows that the molar ratio between P4 and P4S3 is 1:1 and between S8 and P4S3 is 3:8. Therefore, if we have 6 mol P4 and 6 mol S8, the limiting reactant would be P4, and the maximum amount of P4S3 that can be produced is 6 mol (based on the available P4). The correct statement would be: When 6 mol P4 and 6 mol S8 react, the maximum amount of P4S3 that can be produced is 6 mol.