Answered

Explore IDNLearn.com's extensive Q&A database and find the answers you need. Our platform is designed to provide reliable and thorough answers to all your questions, no matter the topic.

The value of AH° for the reaction below is -1107 kJ:
2Ba(s) + O₂(g) → 2BaO(s)
How many kJ of heat are released when 5.75 g of Ba(s) reacts completely with oxygen to form BaO(s)?

Select one:
O a. 96.3
O b. 26.3
O c. 46.4
O d. 23.2
Oe. 193

The Value Of AH For The Reaction Below Is 1107 KJ 2Bas Og 2BaOs How Many KJ Of Heat Are Released When 575 G Of Bas Reacts Completely With Oxygen To Form BaOs Se class=

Sagot :

XKelvinidn

Answer:

C

Explanation:

We can use heat stoichiometry. Thus, convert from grams of Ba to moles of Ba; and use the ΔH value to calculate the amount of heat released. Hence:


[tex]\displaystyle 5.75\text{ g Ba}\cdot \frac{1\text{ mol Ba}}{137.33\text{ g Ba}} \cdot \frac{1\text{ mol}_{rxn}}{2\text{ mol Ba}} \cdot \frac{-1107\text{ kJ}}{1\text{ mol}_{rxn}} =-46.4 \text{ kJ}[/tex]

Therefore, about 46.4 kJ of heat was released.

In conclusion, our answer is C.

We appreciate your contributions to this forum. Don't forget to check back for the latest answers. Keep asking, answering, and sharing useful information. Discover the answers you need at IDNLearn.com. Thanks for visiting, and come back soon for more valuable insights.