Ok.I have a question.My partner and I in a lab we got the volume of a copper strip which we put in a like beaker thing w/ the mL on the side and before we put it in we checked and it said 60 ML and then we put the copper strip in and it didn‘t move.and it stayed at 60 ML so we said the volume was zer0so then the mass of the copper strip was 8.03 so since density is Masss divided by Volume since zero is volume would it make the density zero??and then for the %Error thingthe paper says accurate values for copper is 8.96 g/mLso then i did0 (measured value aka the density?) - 8.96 w/ absolute value bars. over 8.96 and then whole thing times 100.and then i got |-1| x‘s 100and then 1 x‘s 100 and then 100 percent?? it seems wrong.but i just realized, how could density be zero if u can‘t divide 8.03 by 0?? help me please!
you need to put your copper in a smaller beaker or test tube with the measurments on the side i am guessing that your piece of copper was pretty small and your measurement scale on the side of your beaker wasnt as detailed as it needed to be you need something smaller and narrower so you can actually notice a difference
Really.? You tried to divide by zero? Sir, you probably caused a wormhole to appear in the middle of the Pacific Ocean. Well done, idiot.
the reason it's wrong is because you guys didn't measure the volume correctly in the beaker part. Believe it or not, the water level moved when you dropped the copper strip in.I don't know how big of a strip you got, but you didn't see it because the beaker could be too big, you should have used a smaller beaker with more precise measurement intervals (such as a 10mL or 15mL).or you could have been more precise in your measurement of 60mL by including some extra significant digits by estimating after the decimal place (i.e. 60.5mL).then there would be some measurement of volume, even if it's a small difference. Although you probably couldn't do this because the beaker intervals are too large. the volume of the strip is not zero. Does the strip take up space in your classroom? Obviously yes, thus the volume of the strip can't be zero. as for the % error, you got a value of 100%, which actually may be correct.think about it: % error literally means the percent of an error happening in your calculation or lab. If you got a volume of zero, that's wrong, thus that's an error.and the % error is telling you that the chance you made an error in your calculation or lab is 100%.which is true. so you can explain how the volume measurement threw off your results in your conclusion, and you'll probably get partial credit.or you can use the fact that the density of copper is 8.96g/cm^3 and solve for the volume.and get full credit.
