diff --git a/content/酢酸亜鉛.md b/content/酢酸亜鉛.md
index 2efebf76..57ca54ae 100644
--- a/content/酢酸亜鉛.md
+++ b/content/酢酸亜鉛.md
@@ -17,6 +17,13 @@ tags:
 	- あんまり強く加熱すると先にZnOが生成されてしまう
 
 
+亜鉛：65.38g/mol
+10%希塩酸：2.87mol/L
+
+亜鉛2gとすると 2/65.38 = 0.0305903946mol
+塩酸の量は 2x2.87 x(2/65.38) = 0.175588865 L
+
+
 
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