Mathematics, 11.08.2021 14:00 Bbmonstr8279
trong dung dịch CH3COOH 4,3.10^-2 M, người ta xác định được nồng độ H+ bằng 8,6.10^-4 M. Hỏi có bao nhiêu phần trăm phân tử CH3COOH trong dung dịch này điện li ra ion
Answers: 1
Mathematics, 21.06.2019 21:30
Yesterday, george drank 1 small bottle and 2 large bottles, for a total of 1,372 grams. the day before , he drank 1 small bottle and 1 large bottle, for the total of 858 grams. how many grams does each bottle hold?
Answers: 1
Mathematics, 22.06.2019 02:00
The price of a lawn mower is x dollars. the store is having a 75% end of summer clearance sale. which expression can be used to find the clearance price of the mower? a) .25x b) .75x c) x - .25(75) d) x + .25(75)
Answers: 3
Mathematics, 22.06.2019 03:20
Hilary decided to purchase 3 points in order to lower her interest rate on her $140,000 mortgage. how much additional money does she need to bring to closing? a. $4200 b. $4000 c. $6 d. $400
Answers: 1
trong dung dịch CH3COOH 4,3.10^-2 M, người ta xác định được nồng độ H+ bằng 8,6.10^-4 M. Hỏi có bao...
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