apling Learning website. Adobe Flash Player is required for Sapling Assignments.

Question

apling Learning website. Adobe Flash Player is required for Sapling Assignments. e visit this link for more information. 04/3/2018 11:55 PM 4 41.2/100 Print Calculator Periodic Table 3 Sapling Learning At a certain temperature, 0.680 mol of SOj is placed in a 3.50-L container. At equilibriun, 0.140 mol of Oz is present. Calculate Ke Number K 0686 incorrect Convert moles to molar concentrations before applying the Ke formula so,o, SO O Previous Try about uscareers privacy policy terms of usecontact us

Explanation / Answer

2 SO3 (g) <------> 2 SO2(g) + O2(g)

initial....

0.680 <------> 0 + 0

at eq...

0.680-2x <------> 2x + x

given x = 0.14

so number of moles of SO2 at eq = 2x = 2 * 0.14 = 0.28

no.of moles of SO3 = 0.680 - 2x = 0.680 - 0.28 = 0.4

[ SO3 ] = eq.con of SO3 = 0.4 / 3.5 = 0.114

[ SO2 ] = 0.28 / 3.5 = 0.08

[ O2 ] = 0.14 / 3.5 = 0.04

Kc = [ SO2 ] ^2 [ O2 ] / [ SO3 ] ^2

Kc = ( 0.08)^2 * 0.04 / ( 0.114)^2

Kc = 0.000256 / 0.012996

Kc = 0.0197

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.