Answered

Welcome to Westonci.ca, the Q&A platform where your questions are met with detailed answers from experienced experts. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

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 :

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 time. Please come back anytime for the latest information and answers to your questions. Thank you for visiting. Our goal is to provide the most accurate answers for all your informational needs. Come back soon. Westonci.ca is here to provide the answers you seek. Return often for more expert solutions.