DNA was isolated from water samples taken from six different sites. This gel was made to determine where silver carp are found.
1 2 3 4 5 6 7 8
1. North Shore Site 1
2. North Shore Site 2
3. Chicago Site 1
4. Chicago Site 2
5. Calumet Site 1
6. Calumet Site 2
7. Negative Control
8. Positive Control
The results of the eDNA analysis for silver carp,
How do scientists know silver carp are at North Shore site 1 (lane 1)?
A. One of the bands in lane 1 matches a band in lane 2.
B. One of the bands in lane 1 matches a band in the negative control.
C. One of the bands in lane 1 matches a band in the positive control.
D. None of the bands in lane 1 matches a band in either control.

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :