Order: trihexyphenidyl hydrochloride (Artane) 6 mg, PO, twice dailyAvailable: trihexyphenidyl hydrochloride (Artane) 2 mg tabletsHow many tablet(s) will the patient receive on a daily basis?

The addition of a small amount of acid or base will have very little effect on the pH value of a solution containing equal molar concentrations of   A. HCl and NaOCl B. H2SO4 and Na2SO4 C. NH4Cl and NH3 D. CH3CO2H and NH3

What is the overall order of this reaction?                        2ClO2(aq  +  2OH–(aq)  →  ClO3–(aq)  +  ClO2–(aq)  +  H2O(l)   A. 1 B. 2 C. 3 D. 4

A substance undergoes first order decomposition.  After 180.0 minutes, only 3.125% remains.  What is the half life for this substance?   A. 18 minutes B. 36 minutes C. 72 minutes D. 90 minutes

The reducing agent in the following reaction is: Cu2+ (aq)  +  Zn (s)  

The following shows the titration of Acetic acid (CH3CO2H) with Sodium Hydroxide (NaOH).  Which species dictates the pH of the solution when 50 mL of NaOH has been added?   A. CH3CO2H B. CH3CO2H and CH3CO2- C. CH3CO2- D. OH-

Which atom has the most metallic character? A. Carbon (C) B. Cobalt (Co) C. Chromium (Cr) D. Rubidium (Rb)  

For lactic acid, C3H5O3H, Ka = 1.4 x 10-4.  What / ratio results in a buffer with a pH of 4.00? A. 0.70 B. 1.2 C. 1.4 D. 1.8

What are the correct classifications for I, II and III?                   I                             II                           III A.   compound               element                 mixture B.    element                   mixture               compound C.    mixture                   element                compound D. compound                mixture                   element

Consider the following endothermic reaction: 3NO(g)  ⇌  N2O(g)  +  NO2(g) Which process would increase the product concentration for this reaction? A. Decrease the temperature B. Add a catalyst C. Decrease the concentration of NO gas D. Remove NO2 gas