diff --git a/content/酢酸亜鉛.md b/content/酢酸亜鉛.md
index 28412a27..5b78f43e 100644
--- a/content/酢酸亜鉛.md
+++ b/content/酢酸亜鉛.md
@@ -23,7 +23,7 @@ tags:
 炭酸水素ナトリウム 84.007 g/mol
 氷酢酸 60.052 g/mol
 
-
+板一枚1.8g
 亜鉛0.5gとすると 0.5/65.38 = 0.00764759865mol
 
 塩酸の量は 2* 2.87 x(0.5/65.38) = 0.04389721627 L