Author Question: Sulfur and oxygen react to produce sulfur trioxide. In a particular experiment, 7.9 grams of SO3 are ... (Read 269 times)

tatyanajohnson · **on:** Aug 27, 2018

Sulfur and oxygen react to produce sulfur trioxide. In a particular experiment, 7.9 grams of SO3 are produced by the reaction of 6.0 grams of O2 with 7.0 grams of S.

What is the yield of SO3 in this experiment? S (s) + O2 (g) SO3 (g) (not balanced) A) 48
B) 62
C) 73
D) 79
E) 92

Question 2

A 25.0 mL sample of an HCl solution is titrated with a 0.139 M NaOH solution. The equivalence point is reached with 15.4 mL of base. The concentration of HCl is ________ M.

A) 11.7
B) 0.00214
C) 0.0856
D) 0.267
E) 0.139