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supporting the ChemDoodle team with a special offer for a 18 ChemDoodle license. When you have drawn the target acetic acid molecule, click the 'submit' button to check your answer. There is only a limited number of free calls to the ChemDoodle algorithm. The shape of the molecule doesn't matter, but be sure that you have included the double bond to oxygen and the four lone pairs before submitting your drawing.

If the symbol that you want doesn't appear, press repeatedly to cycle through the possible symbols. To overwrite an atom with the keyboard, hover the cursor over the atom and when the brown circle appears press the key for the first letter of the element symbol. You have already overwritten atoms with the label tool in the CO2 molecule. Or you can use the bond tool to quickly complete a carbon skeleton, like the one on the right above, by just clicking on existing Catoms, then use either the Set Label tool or the keyboard to overwrite the necessary atoms. o H H-c-d H 0-11 You can draw the two C atoms with the bond tool, and then use the Set Label tool to add the rest of the atoms by clicking and dragging.

Nd ChemDoodle 3D (References) ChemDoodle Sketcher: Lewis Structures: The Acetic Acid Molecule-Adding H atoms and Overwriting Atoms In this question, your goal is to draw a Lewis structure for the acetic acid molecule, CH3COOH.

Chemdoodle sketcher