50.0 grams of arsenic powder is mixed with 50.0 grams of oxygen gas.  Given the following balanced equation, how many grams of arsenic trioxide is produced?  (Molecular masses: Arsenic = 74.92 g/mol; Oxygen = 16.00; Diarsenic trioxide = 197.84 g/mol) Balanced Equation:  4As(s) + 3O2(g) –> 2As2O3(s) [HINT: How many equations are required to determine the answer?]  

Categorize the following reactions based on their reactants and/or products. Reaction 1: HCl + NaOH → H2O + NaCl Reaction 2: CH4 + 2O2 → 2H2O + CO2 Reaction 3: NaCl(aq) + AgNO3(aq) → AgCl(s) + NaNO3(aq)

In the interest of enhanced buffering capacity, what is the best way to prepare an acidic buffer? [HINT: Read the each question in its entirety]

A patient was asked to consume 250.00 mL of a 0.500% (m/v) KCl solution.  How many grams of potassium (K) did the patient consume?

Rheumatoid factor (RF) is an IgG antibody directed against IgM. 

The Western blot test tests patient serum against:

Tertiary syphilis is best evaluated by using

Before clinical or serologic manifestations, the incubation period for syphilis usually lasts:.

In infectious mononucleosis, Epstein-Barr virus

The term for nontreponemal antibodies produced by syphilis-infected patients against components of their own or other mammalian cells is