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Bio 1050 Lab Practical Exam Questions And Answers

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Bio 1050 Lab Practical EXAM QUESTIONS AND ANSWERS

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Bio 1050 Lab Practical EXAM
QUESTIONS AND ANSWERS




Determine solute concentration in a sample using a spectrophotometer and a standard
curve - Correct Answers -Use equation, absorbance is y, so use the equation provided
to solve for x. X is the solute concentration.

Determine solute concentration in a sample using a spectrophotometer and a
regression equation - Correct Answers -Use the two arrays to determine if there is a
significant difference between the two values. =T.TEST(array1,array2,2,3)
If p-value is greater than 0.05, then there is not a significant difference between the two.

Determine pH - Correct Answers -pH=-log(H+)

Determine pOH - Correct Answers -pOH=14-pH

[H+] - Correct Answers -10^-pH

[OH-] - Correct Answers -10^-pOH

Total magnification - Correct Answers -objective lens x ocular lens

Ocular micrometer - Correct Answers -One line is one unit, use the chart to tell how big
the cell is.

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