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Clearnote
Q&A
Senior High
Chemistry
求3、4題解🥹🙋
Chemistry
Senior High
11 monthsago
😎
求3、4題解🥹🙋
Im Dos ※3.、4.題為題組 近年來健康意識高漲、運動風氣興盛,而在運動後來罐冰冰涼涼的運動飲料真是 大快人心。運動飲料可在短時間內補充流失的電解質與能量,今有某種市售運動 飲料 200 毫升含鈉離子69毫克,且運動飲料的密度為1.0g/mL,試回答 3.、4.題: ) 3. 運動飲料中鈉離子的百萬分點濃度為何?(原子量:Na=23) Y 02: (培) 0.345 (A)3.45×10,(B)3.45×10 (C)3.45×10² (D)3.45×10-1 (E)3.45×10-4 20069000 600 900 69 200 69 800 1000 ) 4. 運動飲料中鈉離子的體積莫耳濃度為何? (A) 15 (B)1.5 (C)0.15 (D)0.015 (E)0.0015 10:00 7000 X 200 1000 : 345x10 345x10 -533450 2345069 345x €3.45x1 69 345 23 1035 696 345×107 34、5x1034 第9回
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