Chemistry

posted by .

Okay I'm doing a lab report, and I need to find the average of two trials. Can someone show me step-by-step how do find the uncertainty for this average:

(4.32g+4.17g)/2
=4.25

The values I used and their uncertainties:
4.32g +/- 0.02
4.17g +/- 0.02

Similar Questions

1. math,help

Can someone show me how step by step how to solve this problem... Rewrite the middle term as the sum of two terms and then factor by grouping. x^2-2x-63 step 1. Find two factors which when multiplied will give you -63 and when added …
2. Pre-Algebra [repost ]

I need help on these three questions BEFORE 10:00 PM. Please someone show me how to do them step by step! Solve the equation for y in terms of x then find the solutions of the equation for the given values of x. 1.x + y = -1 [values …
3. math

I don't understand this calculus problem at all. can someone show me step by step?
4. Math

What's the step-by-step proccess to find the average?
5. Chemistry

Okay I'm doing a lab report, and I need to find the average of two trials. Can someone show me step-by-step how do find the uncertainty for this average: (4.32g+4.17g)/2 =4.25 The values I used and their uncertainties: 4.32g +/- 0.02 …
6. Physics

Can someone please show me step by step how to normalize e^-5x in the interval (0, infinity)?
7. Analytical CHM

Calculate the theoretical amounts of 0.1000 M NaOH titrant used to titrate 0.8 and 0.9 g KHP Please show step by step solution , i need the correct significant figures and units to finish up the rest of the lab correctly i found the …
8. Chemistry Labwork

The uncertainty in each measured value of K is about + 10%. Are all of your measured values of K within the range (+ 10%) of the average K value?