Please answer with CLEAR, CORRECT and DETAILED solutions for an UPVOTE. A sample of anhydrous NaHCO3 (FM = 84.007) is su

[answerhappygod]

Please answer with CLEAR, CORRECT and DETAILED solutions for an UPVOTE.
A sample of anhydrous NaHCO3 (FM = 84.007) is suspected to be contaminated with either NaOH (FM = 39.997) or Na2CO3 (FM = 105. 989). To verify the suspicion, a 0.7483 g sample was dissolved to prepare a 50.00 mL solution, and a 10.00 mL aliquot was taken to prepare a 100 mL solution, where 25.00 mL was analyzed using double flask method. If the sample requires 0.45 mL of standard 0.0125 N HCl to reach the phenolphthalein endpoint and 35.95 mL to reach the bromcresol green endpoint, calculate the percentage composition ( in %w/w) of ALL THE BASIC COMPONENTS in the sample.