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Perform the operation 429.82 g / 321 mL and express to the proper number of significant figures:

Apply the like dissolves like rule and select ALL of the following liquids that are immiscible with water.

Select ALL the formulas that involve ONLY covalent bonding.

What is the molecular shape of a hydrogen sulfide molecule, H2S?  

A patient on mechanical ventilation is ordered to receive Updraft nebulizers with albuterol every 4 hours. The RT practitioner places an external nebulizer in-line and connects it to a flowmeter on the wall. All of the following may occur EXCEPTI. lower exhaled volume readingsII. increased patient effort necessary to triggerIII. increased peak inspiratory pressureIV. decreased tidal volume delivery

Given an MDI for drug administration, which of the following techniques will increase aerosol deposition by sedimentation in the lungs?

An adult female requires mechanical ventilation and is intubated with a 8.5mm ID endotracheal tube. What is the maximum size suction catheter that would be allowable for safe tracheal suctioning?

Identify the noble gas that each ion is isoelectronic with.  Write the name or formula in the blank. a) Cl1- is isoelectronic with [answer1]. b) Al3+  is isoelectronic with [answer2]. c) As3-   is isoelectronic with [answer3].  

Round off the value  531,496.39 to keep 7 significant figures.  Write the answer in the box:

A 21 year old male patient with a diagnosis of status asthmaticus is intubated and has been receiving mechanical ventilation. There is a sudden increase in airway pressures. The patient is hemodynamically stable and breath sounds are clear but significantly decreased on the right. Which of the following should the respiratory therapist recommend?