Page 24 - Chapter 7
P. 24
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3. จงหาว่า จะเกิด แก๊ส H 2 กี่โมล เมื่อใช้ Mg 12 g ท าปฏิกิริยากับ HCl 0.1 mol
จากปฏิกิริยา Mg(s) + 2HCl(aq) MgCl 2(aq) + H 2(g)
ก าหนดมวลอะตอม Mg=24
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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