Is the math correct?

Be sure to use units and the rules of significant figures.

6. Mass of 50 mL beaker                                                                                 34.2g                          

 

7. Mass of beaker and sodium bicarbonate                                             35.2                              

 

8. Calculated mass of sodium bicarbonate alone                          35.2g-34.2g=1g                                      

 Show work here.

 

 

9. Convert mass of sodium bicarbonate to moles            0,030moles                                

Show work here.

1g/84.007=0,03047365 moles                                

 

 

 

10. Theoretical number of moles of acetic acid needed 0.030 mole__________                                                      Since the balanced equation shows that 1 mole of acetic acid is needed to react 1 mole of sodium bicarbonate, the theoretical number of moles of acetic acid needed should be equal to the number of moles of sodium bicarbonate you measured out.

 

1 mole of sodium bicarbonate = 1 mole of acetic acid

The theoretical mole is 0.030 mole of acetic acid

           

 

 

11. Volume in ml of vinegar added                                            ______13.00ml________                                

           

12. Calculated ml of acetic acid used                                            _______0.650 ml_______                                                      

Show work here.

 

13.00ml vinegar * 5% acetic acid/100%vinegar = 0.650 ml

 

13. Calculated grams of acetic acid used                                 ________0,682g_______

Show work here.

Volume is 0.65 ml

Density of acetic acid is 1.049 g/m

 

0.650ml*1.049g/1.00ml= 0,68185g acetic acid

 

 

 

14. Calculated moles of acetic acid used                                 ______0.011 mole_________

Show work here.

 

0.683g acetic acid* 1mol acetic acid/60.052acetic acid =0.011373 moles acetic acid

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Status NEW Posted 27 Apr 2017 02:04 AM My Price 12.00

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