Raoul Pictet, the Swiss physicist who first liquefied oxygen, attempted to liquefy hydrogen. He heated potassium formate, KCHO 2 , with KOH in a closed 2.50-Lvessel. KCHO 2 ( s ) + KOH ( s ) → K 2 CO 3 ( s ) + H 2 ( g ) If 75.0 g of potassium formate reacts in a 2.50-L vessel, which was initially evacuated, what pressure of hydrogen will be attained when the temperature is finally cooled to 25°C? Use the preceding chemical equation and ignore the volume of solid product.
Raoul Pictet, the Swiss physicist who first liquefied oxygen, attempted to liquefy hydrogen. He heated potassium formate, KCHO 2 , with KOH in a closed 2.50-Lvessel. KCHO 2 ( s ) + KOH ( s ) → K 2 CO 3 ( s ) + H 2 ( g ) If 75.0 g of potassium formate reacts in a 2.50-L vessel, which was initially evacuated, what pressure of hydrogen will be attained when the temperature is finally cooled to 25°C? Use the preceding chemical equation and ignore the volume of solid product.
Solution Summary: The author explains how the pressure of hydrogen attained by reaction of 75.0 g of potassium formate in a 2.50 L vessel when the temperature is finally cooled to 25circ
Raoul Pictet, the Swiss physicist who first liquefied oxygen, attempted to liquefy hydrogen. He heated potassium formate, KCHO2, with KOH in a closed 2.50-Lvessel.
KCHO
2
(
s
)
+
KOH
(
s
)
→
K
2
CO
3
(
s
)
+
H
2
(
g
)
If 75.0 g of potassium formate reacts in a 2.50-L vessel, which was initially evacuated, what pressure of hydrogen will be attained when the temperature is finally cooled to 25°C? Use the preceding chemical equation and ignore the volume of solid product.
Unshared, or lone, electron pairs play an important role in determining the chemical and physical properties of organic compounds.
Thus, it is important to know which atoms carry unshared pairs.
Use the structural formulas below to determine the number of unshared pairs at each designated atom.
Be sure your answers are consistent with the formal charges on the formulas.
CH.
H₂
fo
H2
H
The number of unshared pairs at atom a is
The number of unshared pairs at atom b is
The number of unshared pairs at atom c is
HC
HC
HC
CH
The number of unshared pairs at atom a is
The number of unshared pairs at atom b is
The number of unshared pairs at atom c is
Draw curved arrows for the following reaction step.
Arrow-pushing Instructions
CH3
CH3 H
H-O-H
+/
H3C-C+
H3C-C-0:
CH3
CH3 H
Chapter 5 Solutions
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