A nurse informs you that the chest radiograph of your patient shows infiltrates in the posterior basal segments of the lower lobes. She asks you what postural drainage position you would recommend for drainage. Which would you recommend?

A student wants to prepare [x] M KCl (MM = 74.55 g/mol) in a 250-mL volumetric flask. How many pounds (lb) of KCl s/he needs to dissolve in water to prepare 250. mL of [x] M KCl solution? Note: 1 lb = 454 g.______________ lb KCl. Do NOT enter unit.

In a dilution process, ______________________.

Water is a polar solvent and hexane (C6H14) is a nonpolar solvent. Which of the following correctly describes the solubility of the solute?(a) CCl4, soluble in water(b) NaHCO3, soluble in water(c) octane (C8H18), soluble in water(d) CaCl2, soluble in hexane

Do your work in scratch paper and make sure to include the problem #. Type your responses in the text box provided. Do not worry about the subscripts or superscripts. For example, H2O can be shown as “H2O” and Mg2+ as “Mg2+”. Consider the following precipitation reaction (unbalanced): AlCl3(aq) + LiOH(aq) → Al(OH)3(…….) + LiCl(………) A) Balanced chemical equation (molecular equation) with correct physical states [identify (aq) & (s)]: (Use solubility rules to identify the insoluble solid and aqueous solution). ______________________________________ B) Complete (or total) ionic equation (make sure to label charges correctly, wherever appropriate): ________________ C) What is/are the spectator ion(s)? ________________ D) Net ionic equation: _________________________ Solubility Rules.PNG

According to the Arrhenius concept, if NaOH were dissolved in water, it would act as ________.

Consider the following three solutions:Solution A with pH = 3.8Solution B with pH = 6.0Solution C with pH = 8.2Which of the following statements is false?

The pressure of a gas increased from [a] atm to 5.46 atm. If the initial volume was [b] L, what would be the final volume after pressure increase?________________ L. Do NOT enter unit.

In water, a substance that completely ionizes in solution is called a ___________.

What is the volume percent (v/v) concentration of a solution of [x] mL of a unknown liquid solute in [y] mL of water as solvent?______________ % (v/v). Do NOT enter unit.