Hello, can someone please help me get solve

these chemistry assignment for class ? It is very

urgent that all of the asked questions on this sheet are answered correctly.

Please do not answer these if you are not entirely

sure, because I really need to pass! Thank you so

much and have an amazing day.

I HAVE TO INCLUDE...

- Title

- Purpose Statement

- All Of The Correct Calculations

- Conclusion

(Any wrong answers that are given to me will get reported)

Determining the Molar Mass of an Unknown Solid Triprotic Acid Dry Lab 15 Purpose To determine the molar mass of an unknown acid. Materials burette and stand phenolphthalein pipette and pipette pump small Erlenmeyer flask 0.1 gram samples of the unknown acid waste beaker 0.098M NaOH digital balance Procedure Eqpment Setup 1. Obtain 0.1g of the unknown solid acid. 2. Dissolve the unknow acid in 20.0 mL distilled water 3. Rinse the burette with 5 mL of base and discard the base. 4. Using a funnel as an aid, fill the burette with base. Burette 5. Add 2-3 drops of phenolphthalein to the acid solution. 6. Titrate the acid with the NaOH. (The endpoint colour is a permanent light pink) 7. Repeat steps 1-6 with a second 0.1g of unknown acid sample. The volumes of base used does not have to be within 0.2 mL of Final Reading each other. 8. Return any uncontaminated base to the flask on the front desk. con 9. When done, rinse the pipette and burette with distilled water. 10. Hang the burette upside down in the stand with the valve open 11. Clean up as instructed by your teacher. Initial Reading Burete Clamp Base of known Stand Acid of unknown conc. and indicator Observations (2 marks) Trial Sample 1 Sample 2 Initial volume of NaOH (mL) 0.00 15.93 Final volume of NaOH (mL) 15.93 31.81 Volume of NaOH used (mL) Average volume of NaOH (ml) used _(2 mark) Calculations . Given equation: HA(aq) + NaOH(aq) NaA(aq) + H2O(1) Calculate the moles of the unknown acid solution (7 marks) Calculate the molar mass of the unknown acid. (3 marks) Your Report Must Include the following, Title Calculations Purpose Conclusion (1 mark)