What is the absorbance for a sample with 79 %T? (Write answer to three decimal places, for example answer should be written as 0.366)
Given
percent transmittance (%T) = 79%
We know the formula
Absorbance = 2 - log(%T)
hence
Absorbance = 2 - log(79)
= 2 - 1.897
= 0.103 absorbance units
So our answer is 0.103 absorbance units
What is the absorbance for a sample with 79 %T? (Write answer to three decimal places, for example answer should be writ...
A 0.72M solution of "A" has an absorbance of 0.97. What is the absorbance of solution "B" which has a concentration of 0.88M? The path length of the cell is 3.0cm. ( Write answer to three decimal places, if answer is 1.7654 then answer should be entered as 1.765)
A 1.53M solution of "A" has an absorbance of 0.45. What is the absorbance of solution "B" which has a concentration of 0.88M? The path length of the cell is 3.0cm. ( Write answer to three decimal places, if answer is 1.7654 then answer should be entered as 1.765)
1. What is the %T for a sample if its absorbance is 1.27? 2. The accuracy of a spectrophotometer is evaluated by preparing a solution of 60.06 ppm K2Cr2O7 in 0.0050 M H2SO4, and measuring its absorbance at a wavelength of 350 nm in a cell with a pathlength of 1.00 cm. The expected absorbance is 0.640. What is the expected molar absorptivity of K2Cr2O7 at this wavelength?
a. What is the test statistic? (Round your answer to two decimal
places.)
b. What is the p-value? (Round your answer to four decimal
places.)
Can you show steps on how to do it on the calculator.
A graphing calculator is recommended. Are the means for the final exams the same for all statistics class delivery types? The table below shows the scores on final exams from several randomly selected classes that used the different delivery types. Online Hybrid Face-to-face...
PLEASE ROUND FINAL ANSWER TO THREE DECIMAL PLACES!!
PLEASE ROUND FINAL ANSWER TO TWO DECIMAL PLACES!!
A small bob is attached to a cord of length 12m and is released from rest when - Take -0.30 m. 8 Required information Determine the time required for the bob to return to point A (Round the final answer to the decimal places) The time required for the bob to return to point is? Asmall bob is attached to a cord of length...
step 2-what is the upper control limit? round to three decimal
places
step 3- what is the lower control limit? round to three
decimal places
step 4- use the following sample data, taken from the next
time period, to deteemine if the process “in control” or “out of
control”
observations:12.99,12.98,13.04,13.04,12.98
sample mean: 13.006
step 5:use the following sample data, taken from the next time
period, to deteemine if the process “in control” or “out of
control”
observations: 13,12.98,12.97,12.95,13.04
sample mean:...
Round your answer to three decimal places. 7 J 6
Round your answer to three decimal places. 7 J 6
Express your answer to three decimal places with no leading zero. I have .00496048 as my p-value in multi-linear regression should three decimal places with no leading 0 be .00496? When I try to input it, it doesn't want to take more than 3 numbers. So should I just put in .496?
log2+logx=1 write your answer in decimal form rounded to 2 decimal places
(10 points) Note: For this problem, your answer should be rounded to two decimal places in a particular municipality, it is believed that 25 percent of homes are not property insulated. In order to test Ho:p .25 vs. HA:P .25 (where p is the population proportion of homes that are not properly insulated) a random sample of 300 homes was selected. In the sample, it was found that 93 homes were not properly insulated. If the null hypothesis is true,...