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【Daily Question】2018.6.23

2018-06-23View Original

Thread Content

Fill-in-the-blank: In the double-indicator method for determining mixed bases, when phenolphthalein indicator is added, the volume of HCl standard titrant required is 18.00 mL; With methyl orange as an indicator, further titration consumed 14.98 mL of the HCl standard solution; therefore, what is present in the solution is ( ). NaOH + Na2CO3
Reply #22018-06-23
NaOH+Na2CO3
Reply #32018-06-23
NaOH+Na2CO3
Reply #42018-06-23
Na'OH+Na2CO3
Reply #52018-06-23
NaOH + Na2CO3
Reply #62018-06-23
NaOH+Na2CO3
Reply #72018-06-23
NaOH + Na2CO3
Reply #82018-06-23
NaOH+Na2CO3
Reply #92018-06-23
NaOH, Na2HCO3
Reply #102018-06-23
NaOH+Na2CO3

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