Hidrojen Gazı Toplama

Çinko ve asitten hidrojen üretme ve toplama

Gas Laws Intermediate (High School) 35 dak ~$10,00

Hedef

Çinkonun hidroklorik asitle tepkimesinden hidrojen gazı elde etmek ve su yerinden etme yöntemiyle toplamak.

Arka Plan

When zinc metal reacts with hydrochloric acid, hydrogen gas is produced: Zn + 2HCl → ZnCl₂ + H₂. The gas can be collected by water displacement in an inverted graduated cylinder, allowing volume measurement and mole calculations.

Güvenlik Uyarıları

  • Hydrogen gas is extremely flammable — NO open flames nearby
  • HCl is corrosive
  • Work in a well-ventilated area
  • Do not seal the system completely — pressure buildup risk

Gerekli KKD

goggles gloves lab_coat

Malzemeler

  • Zinc granules (5 g)
  • Hydrochloric acid (HCl) (50 mL)
    2M
  • Distilled water (500 mL)

Ekipman

Erlenmeyer flask (250 mL) Rubber stopper with delivery tube Pneumatic trough or large bowl Graduated cylinder (100 mL) Rubber tubing

Prosedür

1

Fill the pneumatic trough with water. Fill the graduated cylinder with water, invert it, and place it in the trough.

5 dak
2

Place 5 g zinc granules in the Erlenmeyer flask.

2 dak
3

Add 50 mL of 2M HCl to the flask. Quickly insert the rubber stopper with delivery tube.

2 dak HCl is corrosive
4

Direct the delivery tube under the inverted graduated cylinder. Collect the hydrogen gas by water displacement.

10 dak No flames — hydrogen is flammable
5

When the reaction slows, record the volume of gas collected. Note temperature and atmospheric pressure.

3 dak
6

Optionally, perform the squeaky pop test: bring a lit splint near a small collection of H₂.

3 dak Very small amount only
7

Calculate moles of H₂ using ideal gas law and compare with moles predicted from zinc mass.

5 dak

Beklenen Sonuçlar

5 g Zn = 0.076 mol should produce 0.076 mol H₂ = ~1.9 L at STP. The collected volume should be close to this when corrected for temperature and water vapor pressure.

Temizlik

Neutralize remaining acid with sodium bicarbonate. Dispose of zinc chloride solution down the drain. Rinse all equipment.

Ayrıntılar

Kategori
Gas Laws
Zorluk
Intermediate (High School)
Süre
35 dak
Tahmini Maliyet
$10,00
Adımlar
7
Malzemeler
3

Daha Fazla Deney

Balonla Charles Yasası 30 min Boyle Yasasının Doğrulanması 40 min Buhar Basıncı ve Kaynama Noktası 45 min CO₂ ve Kireç Suyu Testi 20 min Difüzyon Hızı Karşılaştırması (Graham Yasası) 30 min Kartezyen Dalgıcı 15 min Magnezyumlu Gaz Stokiyometrisi 40 min STP'de Gazın Molar Hacmi 35 min

Frequently Asked Questions

What is the objective of Hidrojen Gazı Toplama?
Çinkonun hidroklorik asitle tepkimesinden hidrojen gazı elde etmek ve su yerinden etme yöntemiyle toplamak.
How difficult is Hidrojen Gazı Toplama?
This experiment is rated as Intermediate (High School). It takes approximately 35 minutes to complete.
What safety precautions are needed for Hidrojen Gazı Toplama?
Key safety precautions include: Hydrogen gas is extremely flammable — NO open flames nearby; HCl is corrosive; Work in a well-ventilated area.
What materials are needed for Hidrojen Gazı Toplama?
The main materials required are: Zinc granules, Hydrochloric acid (HCl), Distilled water.
What results should I expect from Hidrojen Gazı Toplama?
5 g Zn = 0.076 mol should produce 0.076 mol H₂ = ~1.9 L at STP. The collected volume should be close to this when corrected for temperature and water vapor pressure.