just wanted to double check I\'m doing them correctly the first answer for molec
ID: 210501 • Letter: J
Question
just wanted to double check I'm doing them correctly the first answer for molecular formula was glucose and the second one I got 25.00ml
your limiting reactant. What is the empirical and molecular formula if a substance has a molecular weight of 180g/mole and an analysis of 40.00%C ,6.72% H and 53.29%? How many mL of 0.500 sodium hydroxide are required to neutralize 25.00 mL of 0.500M Hydrochloric acid? How many mL of 0.500 barium hydroxide are required to neutralize 25.00 mL of 0.500M hydrochloric acid? How many mL of 0.500 sodium hydroxide are required to neutralize 25.00 mL of 0.500M sulfuric acid? How many mL of 0.500 calcium hydroxide are required to neutralize 25.00 mL of 0.500M phosphoric acid? Aqueous Silver nitrate reacts with solid coppca w r-- following oxidation -reduction reaction; also show how the charges are calculated un to produce solid copper and zinc (II) nitrateExplanation / Answer
1).
Assume that the weight of the compound is, 100 g
Given that, there is, 40%C, 6.72% H, and 53.29% O
1mole of carbon is = 12.01g
Number of moles of carbon (C) = 40.00 g C × 12.01g C = 3.331 mol C
1 mole of hydrogen is = 1.008 grams
Number of moles of hydrogen (H) = 6.72 g H × 1.008 = 6.67 mol H
1 mole of oxygen is = 16.00 grams
Number of moles of oxygen, O = 53.28 g O × 16.00g = 3.330 mol O
Thus, the ratio of C:H:O is, = 3.331:6.67:3.330=1.000:2.00:1 1:2:1
The empirical formula is CHO.
Tmolecular formula is CHO.
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