Preparation of Hydrogen & Carbon Dioxide (55x90cm)
Description
The “Preparation of Hydrogen & Carbon Dioxide (55x90cm)” chart is a large educational poster visually detailing the laboratory procedures, apparatus, and chemical reactions used for generating hydrogen and carbon dioxide gases. This chart is designed to aid students in chemistry classrooms and laboratories with clear, stepwise diagrams and concise explanations.
Key Features
Preparation of Hydrogen Gas:
The chart illustrates the classic laboratory method where dilute hydrochloric acid (HCl) or sulfuric acid (H₂SO₄) reacts with zinc (Zn) in a flask.
The apparatus includes a flask fitted with a thistle funnel, delivery tube for gas collection over water (hydrogen is nearly insoluble in water), and the chemical reaction:
Z
n
+
2
H
C
l
→
Z
n
C
l
2
+
H
2
↑
Zn+2HCl→ZnCl
2
+H
2
↑
Safety and identification details, such as the hydrogen pop test, are often also noted.
Preparation of Carbon Dioxide Gas:
Laboratory generation of carbon dioxide is commonly shown using marble chips (calcium carbonate, CaCO₃) and dilute hydrochloric acid (HCl) in a Woulfe’s bottle or flask.
Apparatus includes a thistle funnel, delivery tube, and collection by upward displacement of air (CO₂ is denser than air).
The chemical equation:
C
a
C
O
3
+
2
H
C
l
→
C
a
C
l
2
+
H
2
O
+
C
O
2
↑
CaCO
3
+2HCl→CaCl
2
+H
2
O+CO
2
↑.
The chart may also show confirmatory tests such as turning limewater milky for CO₂.
General Features:
Diagrams are large, colorful, and well-labelled, often summarizing important properties and laboratory safety notes for each gas.
Includes information on uses and key tests/identification for both gases.
Educational Use
The 55x90cm format supports clear wall display for whole-class teaching in schools and pre-college labs.
Step-by-step visuals help reinforce student understanding of laboratory practices, apparatus setup, and reaction chemistry.
Laminated or high-quality paper ensures durability.
Specifications
| Model No. | N-C053 |
|---|
