Nitroglycerin (C 3 H 5 N 3 O 9 ) is a powerful explosive. Its decomposition may be represented by 4 C 3 H 5 N 3 O 9 → 6 N 2 + 12 CO 2 + 10 H 2 O + O 2 This reaction generates a large amount of heat and many gaseous products. It is the sudden formation of these gases, together with their rapid expansion, that produces the explosion. (a) What is the maximum amount of O 2 in grams that can be obtained from 2.00 × 10 2 g of nitroglycerin? (b) Calculate the percent yield in this reaction if the amount of O 2 generated is found to be 6.55 g.
Nitroglycerin (C 3 H 5 N 3 O 9 ) is a powerful explosive. Its decomposition may be represented by 4 C 3 H 5 N 3 O 9 → 6 N 2 + 12 CO 2 + 10 H 2 O + O 2 This reaction generates a large amount of heat and many gaseous products. It is the sudden formation of these gases, together with their rapid expansion, that produces the explosion. (a) What is the maximum amount of O 2 in grams that can be obtained from 2.00 × 10 2 g of nitroglycerin? (b) Calculate the percent yield in this reaction if the amount of O 2 generated is found to be 6.55 g.
Solution Summary: The author explains that the amount of chlorine produced from mitroglycerin and percent yield of reaction has to calculate and identify the limiting reactant.
Nitroglycerin (C3H5N3O9) is a powerful explosive. Its decomposition may be represented by
4
C
3
H
5
N
3
O
9
→
6
N
2
+
12
CO
2
+
10
H
2
O
+
O
2
This reaction generates a large amount of heat and many gaseous products. It is the sudden formation of these gases, together with their rapid expansion, that produces the explosion. (a) What is the maximum amount of O2 in grams that can be obtained from 2.00 × 102 g of nitroglycerin? (b) Calculate the percent yield in this reaction if the amount of O2 generated is found to be 6.55 g.
Using the Nernst equation to calculate nonstandard cell voltage
A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction:
MnO2 (s)+4H* (aq)+2Cr²+ (aq) → Mn²+ (aq)+2H₂O (1)+2Cr³+ (aq)
+
2+
2+
3+
Suppose the cell is prepared with 7.44 M H* and 0.485 M Cr²+ in one half-cell and 7.92 M Mn² and 3.73 M Cr³+ in the other.
Calculate the cell voltage under these conditions. Round your answer to 3 significant digits.
☐
x10
μ
Х
5
?
000
日。
Calculating standard reaction free energy from standard reduction...
Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free energy AG° for the following redox reaction.
Be sure your answer has the correct number of significant digits.
NO (g) +H₂O (1) + Cu²+ (aq) → HNO₂ (aq) +H* (aq)+Cu* (aq)
kJ
-
☐ x10
x10
olo
18
Ar
Calculating the pH of a weak base titrated with a strong acid
b
An analytical chemist is titrating 116.9 mL of a 0.7700M solution of aniline (C6H5NH2) with a 0.5300M solution of HNO3. The pK of aniline is 9.37.
Calculate the pH of the base solution after the chemist has added 184.2 mL of the HNO 3 solution to it.
Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO3 solution added.
Round your answer to 2 decimal places.
pH = ☐
☑
5
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Calorimetry Concept, Examples and Thermochemistry | How to Pass Chemistry; Author: Melissa Maribel;https://www.youtube.com/watch?v=nSh29lUGj00;License: Standard YouTube License, CC-BY