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August 1, 2015

Homework Help: chemistry

Posted by presh on Friday, April 20, 2012 at 9:59pm.

formula: 2KClO3 + NaCL = 2KCl + NaCl + 3O2

MASS OF TEST TUBE & MIXTURE = 34.03 G
MASS OF EMPTY TEST TUBE = 31.29 G
MASS OF MIXTURE = 2.74 G
1ST WEIGHT OF TEST TUBE & RESIDUE =33.64 G
FINAL WEIGTH OF TEST TUBE & RESIDUE = 33.64 G
MASS OF RESIDUE = 2.35 G
MASS OF OXYGEN = 0.39

MOLES OF OXYGEN = ???
MOLES OF KCLO3 = ???
MASS OF KCLO3 = ???
MASS OF NACLL(#3-#10) = ????
MOLE OF NACL = ?????
MASS PERCENT OF KCLO3 = ????

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