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         <title>Hồ Sỹ Tùng Lâm - 6A9</title>
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         <title>Đinh tiến anh</title>
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         <pubDate>2021-09-27 10:13:27 UTC</pubDate>
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         <title>Đào Ngọc Hiếu Anh</title>
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         <description><![CDATA[<div>28. Nguyễn Thúc Lộc</div>]]></description>
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         <pubDate>2021-09-27 14:10:41 UTC</pubDate>
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         <description><![CDATA[<div>Góc học tập của Lê Trọng Phát Tổ 4 - Lớp 6A9</div>]]></description>
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         <pubDate>2021-09-28 01:40:28 UTC</pubDate>
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         <title>Góc học tập của Lê Trọng Phát _ Tổ 4_ Lớp 6A9</title>
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         <pubDate>2021-09-28 01:42:49 UTC</pubDate>
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         <title>Chu Huy Bách</title>
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         <pubDate>2021-09-28 01:56:11 UTC</pubDate>
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         <description><![CDATA[<div>Góc học tập của Đỗ Gia Hưng</div>]]></description>
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         <title>Trần Hoàng Mai Anh </title>
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         <title>16. Phạm Trung Hiếu</title>
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         <title>Góc học tập - Lê Đức Hưng 6A9</title>
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         <description><![CDATA[<div><em>&nbsp;Học tập dưới nguồn sáng tự nhiên luôn là một điều tuyệt vời</em></div>]]></description>
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         <pubDate>2021-09-28 08:37:40 UTC</pubDate>
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         <title>Nguyễn Ngọc Lâm Tùng- 6A9</title>
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         <pubDate>2021-09-28 10:42:06 UTC</pubDate>
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         <description><![CDATA[<div>Nguyễn Minh Anh 6A9</div>]]></description>
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         <pubDate>2021-09-28 13:01:45 UTC</pubDate>
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         <title>Góc học tập - Hoàng Chấn Hưng 6A9</title>
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         <pubDate>2021-09-28 13:12:27 UTC</pubDate>
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         <title>Nguyễn Phương Linh</title>
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         <pubDate>2021-09-28 14:44:03 UTC</pubDate>
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         <description><![CDATA[<div>Góc học tập của Nguyễn Gia Hưng&nbsp;</div>]]></description>
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         <pubDate>2021-09-28 15:55:32 UTC</pubDate>
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         <title>29.Nguyễn Ngọc Lương-6A9</title>
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         <description><![CDATA[<div>Góc học tập của Nguyễn Ngọc Lương.</div>]]></description>
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         <pubDate>2021-09-28 16:45:33 UTC</pubDate>
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         <title>48 nguyễn bảo yến</title>
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         <pubDate>2021-09-29 00:25:01 UTC</pubDate>
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         <title>32. Ngô Hoàng Minh</title>
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         <description><![CDATA[<div>góc học tập của Hoàng Minh</div>]]></description>
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         <pubDate>2021-09-29 00:34:22 UTC</pubDate>
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         <title>17.Phạm Phương Hoa</title>
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         <pubDate>2021-09-29 07:49:10 UTC</pubDate>
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         <title>Đào Ngọc Hiếu Anh</title>
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         <pubDate>2021-09-29 11:59:01 UTC</pubDate>
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         <title>43 - Tạ Hồng Quang </title>
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         <pubDate>2021-09-29 13:15:03 UTC</pubDate>
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         <title>23.Lê Việt Hữu Lớp 6A9&quot;Góc học tập&quot;</title>
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         <pubDate>2021-09-29 14:10:25 UTC</pubDate>
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         <title>18 - Trần Xuân Hòa - 6A9 &quot; Góc học tập&quot;</title>
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         <pubDate>2021-09-29 15:02:47 UTC</pubDate>
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         <title>Góc học tập Bùi Trương Nhật Nam 6A9</title>
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         <pubDate>2021-09-30 00:15:15 UTC</pubDate>
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         <title>Lê Thị Tâm Minh - 6A9</title>
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         <description><![CDATA[<div>góc học tập của con Tâm Minh ạ</div>]]></description>
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         <pubDate>2021-09-30 03:43:15 UTC</pubDate>
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         <title>Góc học tập - Đào Vũ Hoài Anh</title>
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         <pubDate>2021-10-02 14:50:44 UTC</pubDate>
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         <pubDate>2021-10-12 04:01:02 UTC</pubDate>
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         <title>Nguyễn Minh Dung</title>
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         <description><![CDATA[<div>a) Trước tiên phải xem muối nào được tạo thành (NaHCO<sub>3</sub> hay Na<sub>2</sub>CO<sub>3</sub>).<br>n<sub>NaOH</sub> &gt; 2n<sub>CO2</sub> nên muối sau phản ứng là Na<sub>2</sub>CO<sub>3</sub>; CO<sub>2</sub> phản ứng hết, NaOH dư.<br>Phương trình hóa học của phản ứng :<br>2NaOH + CO<sub>2</sub> → Na<sub>2</sub>CO<sub>3</sub> + H<sub>2</sub>O</div><div>Theo pt n<sub>NaOH pư</sub> = 2.n<sub>CO2</sub> = 2. 0,07 = 0,14 mol ⇒ n<sub>NaOH dư</sub> = 0,16 - 0,14 = 0,02 mol</div><div>Khối lượng chất dư sau phản ứng:</div><div>m<sub>NaOH</sub> = 0,02 . 40 = 0,8g.</div><div>b)Theo pt n<sub>Na2CO3</sub> = n<sub>CO2</sub> = 0,07 mol</div><div>⇒ m<sub> Na2CO3</sub> = 0,07 x 106 = 7,42g.</div><div>Đặt tỉ lệ&nbsp;</div><div>&nbsp;T ≥ 2 ⇒ Chỉ tạo muối Na<sub>2</sub>CO<sub>3</sub>; Khi T = 2 phản ứng vừa đủ, T &gt; 2 NaOH dư</div><div>T ≤ 1 ⇒ Chỉ tạo muối NaHCO<sub>3</sub>; Khi T = 2 phản ứng vừa đủ, T &lt; 1 CO<sub>2</sub> dư<br> 1 &lt; T &lt; 2 ⇒ Tạo cả 2 muối<br><br></div>]]></description>
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         <pubDate>2021-10-13 04:58:50 UTC</pubDate>
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         <author>yennhinguyen21062007</author>
         <link>https://padlet.com/honghoa2410/34syl760iapdayh/wish/1812922485</link>
         <description><![CDATA[<div>Nguyễn Yến Nhi-9A0</div>]]></description>
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         <author>yennhinguyen21062007</author>
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         <title></title>
         <author>xunganin</author>
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         <title>bài 3 sgk trang 27</title>
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         <description><![CDATA[<div>Hải Long<br>a)<br>nCO2=1,568/22,4=0,07 mol<br>nNaOH=6,4/40=0,16 mol<br>Có nCO2 &gt; nNaOH<br>=&gt;CO2 hết, NaOH dư<br>PTHH:&nbsp; &nbsp; 2NaOH+CO2-&gt;Na2CO3+H2O<br>Theo pt: 2 mol&nbsp; &nbsp; &nbsp; 1 mol&nbsp; &nbsp;&nbsp;<br>Theo đb: 0,14 mol 0,07 mol<br>=&gt; nNaOH dư=0,16-0,14=0,02 (mol)<br>=&gt; mNaOH dư= n x M=0,02 x 40=0,8 (g)<br>b)<br>PTHH:&nbsp; &nbsp; 2NaOH+CO2-&gt;Na2CO3+H2O<br>Theo pt: 2 mol&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1 mol&nbsp; &nbsp;&nbsp;<br>Theo đb: 0,14 mol&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0,07 mol<br>=&gt; mNa2CO3=n x M=0,07 x 106=7,42 (g)</div>]]></description>
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         <author>cungthucanh</author>
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         <link>https://padlet.com/honghoa2410/34syl760iapdayh/wish/1813197422</link>
         <description><![CDATA[<div>Bùi Đức Anh </div>]]></description>
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         <title>Nguyễn Yến Nhi-9A0</title>
         <author>yennhinguyen21062007</author>
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