1) Aspirin (C9H8O4) is synthesized by mixing salicylic acid (C7H6O3) with excess acetic anhydride (C4H6O3). The balanced equation is:
C7H6O3 + C4H6O3 ------------> C9H8O4 + C2H4O2
Molar mass/ g.mol^-1
C2H4O2 60
C4H6O3 102
C7H6O3 138
C9H8O4 180
When 2.0g of salicylic acid is mixed with excess acetic anhydrude, 1.7g of aspirin is collected . What is the percent yield for this reaction?
2) Starting with 4.3 L if 0.58 M Na2CO3(aq) what volume of this solution is needed to prepare 250 mL of 0.20 M Na2CO3(aq) solution?
3) If 26.32 mL of .100 M H2SO4 is exactly neutralized by 34.56 of NaOH solution, what is the molar concentration?
4) A solution is prepared by dissolving 3.422g of Al2(SO4)3, molar mass 342.2 g.mol^-1, in water to obtain 0.100 L of solution. What is the molar concentration of sulfate ion in this solution?
Please explain! Step by step if possible! Thank you!
1) Aspirin (C9H8O4) is synthesized by mixing salicylic acid (C7H6O3) with excess acetic anhydride (C4H6O3). The balanced equation is:
C7H6O3 + C4H6O3 ------------> C9H8O4 + C2H4O2
Molar mass/ g.mol^-1
C2H4O2 60
C4H6O3 102
C7H6O3 138
C9H8O4 180
When 2.0g of salicylic acid is mixed with excess acetic anhydrude, 1.7g of aspirin is collected . What is the percent yield for this reaction?
2) Starting with 4.3 L if 0.58 M Na2CO3(aq) what volume of this solution is needed to prepare 250 mL of 0.20 M Na2CO3(aq) solution?
3) If 26.32 mL of .100 M H2SO4 is exactly neutralized by 34.56 of NaOH solution, what is the molar concentration?
4) A solution is prepared by dissolving 3.422g of Al2(SO4)3, molar mass 342.2 g.mol^-1, in water to obtain 0.100 L of solution. What is the molar concentration of sulfate ion in this solution?
Please explain! Step by step if possible! Thank you!
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