Recent content by Cee

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    Electroplating, anode and cathode help.

    I'm just having trouble understanding, I get the gist of it though. This is what I know in a electrolytic cell (I may be wrong): The cathode is negative, anode is positive and the current travels from the cathode to anode right? So during electroplating, the anode is the electrode being...
  2. C

    Calculating how much solvent is needed to dilute 1.5M of Cu(NO3)2

    Hello, I just want to make sure that my calculations are correct before doing an experiment. I need to dilute 250ml of 1.5M Cu(NO3)2 to 0.5M and distilled water is to be used as the solvent. So I'm not sure how much (volume) of distilled water need to be added. I used the equation C1xV1=C2xV2...
  3. C

    What does this equation mean? [Exponentials]

    So I'm trying to come up with 2 exponential function for a question, one we do by hand and one with technology. So on graphmatica, it came up with: y = exp(0.0211x - 28.95) which I have no idea what it means. I thought the equation was supposed to be in y= a*b^x Is it possible to change it...
  4. C

    Having trouble understanding the dB formula

    I know that to work out dB the formula is: dB = 10*log(P1/P2 I just don't get what the P1 and P2 are exactly but I know that dB is a ratio that expresses 2 values? And also, how do you compare two values of dB. Say, there's 80dB and 105dB, how do you work out how many times louder is the 105dB...
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