From aaa3bef1f686a9149b01fbc66ee4a372f3e26254 Mon Sep 17 00:00:00 2001 From: "Tomoya(obsidian)" Date: Thu, 17 Aug 2023 13:51:11 +0900 Subject: [PATCH 1/7] [obsidian] vault backup: 2023-08-17 13:51:11[ --- content/酢酸亜鉛.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/content/酢酸亜鉛.md b/content/酢酸亜鉛.md index 03bb5965..bba03022 100644 --- a/content/酢酸亜鉛.md +++ b/content/酢酸亜鉛.md @@ -24,9 +24,9 @@ tags: 氷酢酸 60.052 g/mol -亜鉛2gとすると 2/65.38 = 0.0305903946mol +亜鉛0.5gとすると 0.5/65.38 = 0.00764759865mol -塩酸の量は 2x2.87 x(2/65.38) = 0.175588865 L +塩酸の量は 0.5x2.87 x(0.5/65.38) = 0.175588865 L 176ml From 899e8b6bd3c220930a929b56eb0732a58142ee63 Mon Sep 17 00:00:00 2001 From: "Tomoya(obsidian)" Date: Thu, 17 Aug 2023 14:32:18 +0900 Subject: [PATCH 2/7] [obsidian] vault backup: 2023-08-17 14:32:18[ --- content/酢酸亜鉛.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/content/酢酸亜鉛.md b/content/酢酸亜鉛.md index bba03022..28412a27 100644 --- a/content/酢酸亜鉛.md +++ b/content/酢酸亜鉛.md @@ -26,9 +26,9 @@ tags: 亜鉛0.5gとすると 0.5/65.38 = 0.00764759865mol -塩酸の量は 0.5x2.87 x(0.5/65.38) = 0.175588865 L +塩酸の量は 2* 2.87 x(0.5/65.38) = 0.04389721627 L -176ml +43.8972162741mL 重量比で1.18g/ml From f6c468e551f7ba2e16595632fdc1feab9b998659 Mon Sep 17 00:00:00 2001 From: "Tomoya(obsidian)" Date: Thu, 17 Aug 2023 14:49:15 +0900 Subject: [PATCH 3/7] [obsidian] vault backup: 2023-08-17 14:49:15[ --- content/酢酸亜鉛.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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 From 274eecf161600176a09c52f753cd1cff136c2fc0 Mon Sep 17 00:00:00 2001 From: "Tomoya(obsidian)" Date: Thu, 17 Aug 2023 15:01:47 +0900 Subject: [PATCH 4/7] [obsidian] vault backup: 2023-08-17 15:01:47[ --- content/酢酸亜鉛.md | 2 ++ content/酸化亜鉛.md | 15 ++++++++++++++- 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/content/酢酸亜鉛.md b/content/酢酸亜鉛.md index 5b78f43e..72e79a1b 100644 --- a/content/酢酸亜鉛.md +++ b/content/酢酸亜鉛.md @@ -76,3 +76,5 @@ http://www.sciencemadness.org/smwiki/index.php/Zinc_acetate 炭酸ナトリウム多めに入れると一部は水酸化亜鉛として沈殿して、こっちは125°で分解してZnOになる。そもそも全部水酸化亜鉛ではダメなのか？ +なんか黒いとけ残りがいっぱい発生する。おそらく銅が不純物として含まれてるっぽい？ +もっとちゃんとした原料を用意した方がよさそうではある・・・ \ No newline at end of file diff --git a/content/酸化亜鉛.md b/content/酸化亜鉛.md index d9bb260c..cf1977c3 100644 --- a/content/酸化亜鉛.md +++ b/content/酸化亜鉛.md @@ -1,4 +1,17 @@ --- tags: - material ---- \ No newline at end of file +--- + +普通にamazonで買えるっぽい・・・ +https://www.amazon.co.jp/dp/B01I8G5WUU + +https://www.amazon.co.jp/dp/B006ZSV13G/ + +前駆体溶液自体は金属亜鉛よりこっちスタートの方がいいのかな(直接溶かすと時間がかかる上に不純物がいっぱい析出する) + +亜鉛と塩酸の反応速度 : 反応に伴って生成される黒色物質の影響について / 工藤 貞重 / 研究報告 / 新潟県立教育センター + +巻 9, p. 17-24, 発行日 1976-03-30 + +https://edu-niigata.repo.nii.ac.jp/records/871 \ No newline at end of file From 8b1859bdb1cbb83435e8f08514d1c08c89ec1c06 Mon Sep 17 00:00:00 2001 From: "Tomoya(obsidian)" Date: Thu, 17 Aug 2023 15:34:13 +0900 Subject: [PATCH 5/7] [obsidian] vault backup: 2023-08-17 15:34:13[ --- content/酢酸亜鉛.md | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/content/酢酸亜鉛.md b/content/酢酸亜鉛.md index 72e79a1b..5bcbdf7f 100644 --- a/content/酢酸亜鉛.md +++ b/content/酢酸亜鉛.md @@ -26,15 +26,13 @@ tags: 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 +塩酸の量はx2で0.0152951973mol + 0.0152951973* 2.87 = 0.04389721627 L 43.8972162741mL -重量比で1.18g/ml +なんか明らかに0.5g以上溶けてる気がする・・・・・なんで？ -ちょっと多すぎるな - -亜鉛0.5gとすると塩酸51.92g 炭酸水素ナトリウムの量 84.007(g/mol) x 0.5/65.38 (mol) = 0.64245182g From dc24632199ea9f5536455e769cea9f18c622f02d Mon Sep 17 00:00:00 2001 From: "Tomoya(obsidian)" Date: Thu, 17 Aug 2023 15:44:13 +0900 Subject: [PATCH 6/7] [obsidian] vault backup: 2023-08-17 15:44:13[ --- content/酢酸亜鉛.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/content/酢酸亜鉛.md b/content/酢酸亜鉛.md index 5bcbdf7f..47a7fd0b 100644 --- a/content/酢酸亜鉛.md +++ b/content/酢酸亜鉛.md @@ -32,7 +32,7 @@ tags: 43.8972162741mL なんか明らかに0.5g以上溶けてる気がする・・・・・なんで？ - +pHも0貼りつきっぱなしになる 炭酸水素ナトリウムの量 84.007(g/mol) x 0.5/65.38 (mol) = 0.64245182g From 0e5b21df4e04696f8fab8bdf47ddcb741ffd3b52 Mon Sep 17 00:00:00 2001 From: "Tomoya(obsidian)" Date: Thu, 17 Aug 2023 16:02:07 +0900 Subject: [PATCH 7/7] [obsidian] vault backup: 2023-08-17 16:02:07[ --- content/酢酸亜鉛.md | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/content/酢酸亜鉛.md b/content/酢酸亜鉛.md index 47a7fd0b..5ef3f0e1 100644 --- a/content/酢酸亜鉛.md +++ b/content/酢酸亜鉛.md @@ -27,12 +27,24 @@ tags: 亜鉛0.5gとすると 0.5/65.38 = 0.00764759865mol 塩酸の量はx2で0.0152951973mol - 0.0152951973* 2.87 = 0.04389721627 L + ~~0.0152951973mol x 2.87 (mol/L) = 0.04389721627 L 43.8972162741mL なんか明らかに0.5g以上溶けてる気がする・・・・・なんで？ -pHも0貼りつきっぱなしになる +pHも0貼りつきっぱなしになる~~ + +見事に分子分母間違えてた・・・・ +5.32933704mlでよかった + +43.89mlの塩酸は +43.89x 0.001 x 2.87mol/L=0.1259643mol +必要な金属亜鉛は +65.38x0.1259= 8.23554593g + +1.8gのやつ4枚と、元々余ってた2/3ぐらいのやつで +1.8x4.66=8.3880 +不純物のとけ残りを考えるとこれでちょうど良さそう 炭酸水素ナトリウムの量 84.007(g/mol) x 0.5/65.38 (mol) = 0.64245182g