Question

can you please help me finnish my assigmemt ?

Trial 2 Trial 1 Magnas Sffak Massn S 1. Name of the hydrate or Unknown number 35619 36.679 2. Mass of crucible and hydrate before heating 35.095 31939 3. Mass of crucible and anhydrous compound 34.489 35009 4. Mass of crucible 5. Mass of hydrate (by subtracting 2-4) 6. Mass of water (by subtracting 2-3) 7.% Water in the hydrate (6/5) x 100 % 8. Theoretical % ( ask instructor) 9.% Error CALCULATIONS: (you must show your work) %Error- Theory-experimental x 100 % Theory x 100 % % Water mass of water mass of hydrate

decomposition reaction: water in hydrates

can you help me solve it please ?

Answer 1

Trail-1 :

5) Mass of hydrate(2-4) = 36.67-35.06=1.61g

6) Mass of water (2-3) =36.67-35.06=0.84g

7) %water in hydrate(6/5)×100%=(0.84/1.61)×100=52.17%

%water=52.17%

8) theory%=(ask instructor)

9) Error%= (theory-experimental)/theory×100%

=(ttheory-52.17) /theory×100%

Trail-2 :

5) massof hydrate(2-4) =35.61-34.48=1.13g

6) mass of water (2-3) =35.61-35.04=0.57

7) %water in hydrate (6/5) ×100% =(0.57/1.13) ×100%=50.44%

%water =50.44%

8) theory% = ask instructor

9) % error = (theory-expermental) /theory×100% =(theory-50.44) /theory×100%

Some deta not given from instructor , from the given data enter the value from instructor.

Thank you.