don't have to answer these, I just want to know what it means
1.I need to earn an A on my chemistry experiment. To earn an A, my observed value must be within a 5% error of the accept value. The accepted value for the density of aluminum is 2.699 g/ cubic cm. What is the lowest density that I can observe and still earn an A?
2. I need to earn an A on my chemistry experiment. To earn an A, my observed value must be within a 5% error of the accept value. The accepted value for the density of aluminum is 2.699 g/ cubic cm. What is the highest density that I can observe and still earn an A?
5% of 2.699 = .05 * 2.699 = .13495
2.699 - .13495 =
2.56405 g / cm^3
For the greatest observed density......add 2.699 + .13495
KF, you've posted 17 questions on this site and every single one of them has more than one question on it. I mean, just saying, this site isn't really for posting your homework and expecting people to do it for you. Just saying. Do the problems the best you can yourself first.