Page 25 - Chapter 9
P. 25

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                     2.  ปฏิกิริยา   SiO 2  (s)  +  2C ( s)        Si  (s)    + 2CO ( g )   ………(1)
                                   Si  (s)    + 2Cl 2 ( g )         SiCl  4 ( l )       ………(2)
                                   SiCl  4 ( l )  +  2H 2 ( g )     Si  (s)     +  4HCl ( g )    ………(3)

                          SiO 2  15   g    เกิดปฏิกิริยาสิ้นสุดได้   HCl 30   g  จงหาผลได้ร้อยละ

                          (ก าหนด มวลอะตอม  H=1  C=12    O=16   Si =28   Cl=35.5)


                   กระบวนการคิดวิเคราะห์โจทย์และค านวณ

                   ขั้นที่ 1 ท าความเข้าใจปัญหา

                          1.1  สิ่งที่โจทย์ก าหนดให้
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                          1.2  สิ่งที่โจทย์ต้องการทราบ
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                   ขั้นที่ 2 วางแผนแก้ปัญหา

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                   ขั้นที่ 3 ด าเนินการตามแผน

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