If you dissolve 45.0 g of MgCl2 (95.21 g/mol) in enough water to make a 3-L solution, what is the concentration (in molarity) of this magnesium chloride solution?  

How many lithium atoms are in 8.21 g of lithium? (use scientific notation and report answer to three significant digits). Li atoms = [a]x10^[b]

Classify compounds as ionic, molecular, or acid. SO3    [ans1]                                                  ZnO    [ans2]                                                         H2O   [ans3]                                            NH4Cl   [ans4]                                                      H2CO3 (aq)   [ans5]                                                     

If you dissolve 145.0 g of (NH4)2SO4 (132.14 g/mol) in enough water to make a 2-L solution, what is the concentration (in molarity) of this ammonium sulfate solution?

How many grams of sodium chloride (58.44 g/mol) are in a 150 mL of a 3.50 M NaCl solution?

Which of the following best illustrates the concept of resilience?

Select all that apply to the diagnosis of schizophrenia:

Personality disorders often co-occur with mood and eating disorders. A young woman is undergoing treatment at an eating disorders clinic and her nurse suspects that she may also have a cluster B personality disorder because of her:

A nurse counsels the family of a patient diagnosed with Alzheimer’s disease who lives at home and wanders at night. Which action is most important for the nurse to recommend to enhance safety?

The adult child of a patient diagnosed with major depressive disorder asks, “Do you think depression and physical illness are connected? Since my father’s death, my mother has had shingles and the flu, but she’s usually not one who gets sick.” Which answer by the nurse best reflects current knowledge?