A 15.00 g sample containing mixed alkali and other inert components was dissolved and diluted to 300 mL with water. A 20

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A 15.00 g sample containing mixed alkali and other inert
components was dissolved and diluted to 300 mL with water. A 20 mL
aliquot was titrated with 5.02 mL of 0.5352 M HCl to reach PHP
endpoint. Another 20 mL aliquot was titrated to the BCG endpoint,
using up 18.87 mL of titrant in the process. Note: Answer in two
decimal places only. If there is no answer, type in 0.00. Use the
molar masses 105.989 𝑔/𝑚𝑜l 𝑁𝑎2cO3 and 84.007 g/mol NaHCO3
indicated. The volume of titrant needed to neutralize NaOH is
_________ mL. The volume of titrant needed to neutralize Na2CO3 is
_____________ mL. The volume of titrant needed to neutralize NaHCO3
is _____________ mL. The mass of NaOH is ___________ g. The mass of
Na2CO3 is __________ g. The mass of NaHCO3 is __________ g. The
percent weight of NaOH is __________ %. The percent weight of
Na2CO3 is __________ %. The percent weight of NaHCO3 is __________
%.