Recent content by ArjenB

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    Trigonometric graph transformation

    Homework Statement Transform the following equation: X2sin(3x) 1. Stretch vertically by a factor 9 2. Stretch horizontally by a factor 3 3. Shift to the left by a value of 1.2. The attempt at a solution 1. Stretching vertically by a factor 9 gives: 9x2sin(3x) 2. Stretching vertically by...
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    What is the Lewis structure of C3H5+ ion?

    Well, of course, it's not a noble gas. Maybe I have I understood it wrong, but as far as I understood it, the electrons required to obey the octet rule, will be used to form bonds. In this case, I calculated 18 electrons would be required to obey the octet rule, which are 9 pairs, so assumably 9...
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    What is the Lewis structure of C3H5+ ion?

    Hi, For school, I have to give the Lewis structure of C3H5+ ion. There is a method explained, which is fairly easy, and has always worked. It has also worked for ions. However, this is the first time I have to give the Lewis structure of a positive ion.The valence of the C atom is 4 electrons...
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    Calculators How can I plot concentration as a function of time on my TI-84 Plus calculator?

    Hi, I wasn't sure where to post this. I have a chemistry homework problem, which is not necessarily that hard, but it wants me to put values into my TI-84 Plus. I will not explain the problem too deeply, but it's about reaction time, volume, and concentration (mol/L). I am given a table of...
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    Correct solubility product value

    Hi, For school we are currently working with heterogeneous equilibria. I am given a salt that will be solved in water and I have to calculate the concentrations of the ions. I have to use the solubility product for this. In the Netherlands we are provided with a reference book that has all...
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