Lightboxes
Panier
alb10657664

Ammonium chloride formation

Ammonium chloride formation. A glass tube is plugged by cotton balls at both ends. Small amounts of concentrated ammonium hydroxide (NH4OH, 28-30%) and concentrated hydrochloric acid (HCl, 32-36%) are used to wet the two balls. Colorless ammonia (NH3) and hydrogen chloride (HCl) gases diffuse from the respective balls. When they meet, they react and produce a ring of fine white powder of ammonium chloride: NH3 + HCl -> NH4Cl. Molecular weight of ammonia is less than that of hydrogen chloride, therefore it diffuses faster and the white ring is formed closer to the ball with the hydrochloric acid.
Partager
pinterestPinterest
twitterTwitter
facebookFacebook
emailEmail

Ajouter à une autre Lightbox

Ajouter à une autre Lightbox
add to lightbox print share
Avez-vous déjà un compte? S'identifier
Vous n'avez pas de compte ? S'inscrire
Acheter cette image. Sélectionnez l'usage:
Chargement...
Titre:
Ammonium chloride formation
Légende: Voir la traduction automatique
Ammonium chloride formation. A glass tube is plugged by cotton balls at both ends. Small amounts of concentrated ammonium hydroxide (NH4OH, 28-30%) and concentrated hydrochloric acid (HCl, 32-36%) are used to wet the two balls. Colorless ammonia (NH3) and hydrogen chloride (HCl) gases diffuse from the respective balls. When they meet, they react and produce a ring of fine white powder of ammonium chloride: NH3 + HCl -> NH4Cl. Molecular weight of ammonia is less than that of hydrogen chloride, therefore it diffuses faster and the white ring is formed closer to the ball with the hydrochloric acid.
Crédit:
Album / Science Source / Turtle Rock Scientific
Autorisations:
? Autorisation de modèle: Non - ? Autorisation de propriété: Non
Questions sur les droits?
Taille de l'image:
5056 x 3341 px | 48.3 MB
Taille d'impression:
42.8 x 28.3 cm | 16.9 x 11.1 in (300 dpi)
Mots clés: