Question about Casio FX-270W Calculator

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I have AP Chemistry homework that involves finding the pH level of a solution. I know the equation for solving the problem. However it requires my calculator and I do not know how to use the log feature on the calculator. I also want to know how I can change my answer to standard form using the Casio fx-270W Plus.

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Posted on Feb 07, 2012

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To take the logarithm (log base 10) of any number, enter that number and press the "log" key.

Posted on Mar 23, 2011


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Can I enter a formula like this 5/500=2/x and get an answer.

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I'm not specifically familiar with the TI83 or TI84 but I've used a lot of TI calculators in my time, so I'll give it a try. If your trying to find the antilog of a number in base 10 enter the number and hit the (10 to the X) button. If you're trying to find the antilog of a number in in base e (natural log), enter the number and hit the (e to the X) button.

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Find the antilog on the TI-83 Plus for finding pH in chemistry problems

I reccently had the same problem, but I have a Ti-84 Plus,and I am disgusted by how poorly this matter is covered by Texas Intruments. Esp. since the solution is rather simple.

The antilog key is [2nd] [log] or the 10^x. On your screen it should apear as 10^( and then you just input the value that you want to find the antilog of.

When used to solve pH problems remember to input the pH value as a negative number, since pH= -log[H+] then [H+]= antilog(-pH).

Hope that helped))))) ^^

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