Chemistry, 16.06.2021 19:40 perezlizbeth570

cho v lít khí co2 được hấp thụ hoàn toàn vào dung dịch chứa 0,04 mol naoh và 0,03 mol na2co3 thu được dung dịch y chứa 6,85 gam chất tan. cho từ từ y vào hcl được dung dịch t vè 0,336 lít co2. cho dung dịch t vào bacl2 thu được m gam kết tủa. giá trị của m là

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