An order is given to administer 15 g of lactulose, often used for treating complications of liver disease. The lactulose syrup has a concentration of 10. g/15 mL. What volume, in milliliters, of syrup should be given to the patient? Show the calculation.

A blood sample has a pH of 7.42. What is the concentration of hydronium ion in the sample?

Argon gas is cooled from 120. ºC to 52 ºC. The original volume of argon at 120. ºC was 122 L. What is the final volume in liters, assuming P and n are constant? Show the calculation.

Write the structure of the product formed in the following oxidation–reduction reactions. Identify the functional group in the reactant that changes, and identify the new functional group in the product.   b.   

Identify the brownish, delicate layer being lifted up by the probe.  It is the inside tunic of the eye.

The red arrow is pointing to a separation between the two hemispheres.  What is the name of this deep groove?

Identify the structure marked with the  number 9.

Identify the bone indicated by #7    

Identify this type of epithelial tissue which lines the trachea.    

The gray arrow is pointing to the middle area of the brain stem.  Name this enlarged area.