Before reaction: a. unknown number b. weight of beaker, test tube weight of beak

Question

Before reaction: a. unknown number b. weight of beaker, test tube weight of beaker, test tube, KCIO3 KCI d. weight of beaker, test tube, KCIO3 KCI. Mno2 e. weight of KCIO3 KCl sample (c-b) After reaction: f. volume of oxygen collected at laboratory temperature and pressure -22.3% 246.3 n (determined by the amount of water expelled from the flask g. temperature of the oxygen h. water vapor pressure at the measured temperature (table: Handbook of Chemistry and Physics) mm i. barometric pressure pressure of oxygen collected (i-h) k. weight of beaker, test tube, Mno2 residue CALCULATIONS I. Using the following steps with the proper number of significant figures, calculate the molar volume of oxygen showing all work clearly. O Dmol A. the moles of oxygen gas formed (use mass of gas from l) 3 q s 2 ounol 129 Nirode

Explanation / Answer

1) That's because you want to use the volume of oxygen at the room temperature.

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