Standard Temperature and Pressure Video Lessons

Concept: Standard Temperature and Pressure

# Problem: How many moles of gaseous arsine (AsH 3) occupy 0.0400 L at STP? What is the density of gaseous arsine?

###### FREE Expert Solution

We are being asked to determine the moles and density of gaseous arsine (AsH3) occupying 0.0400 L at STP

Recall that standard temperature and pressure (STP) is defined as 1 atm and 0 ˚C

For this problem, we need to do the following:

Step 1: Calculate the moles of gaseous arsine (AsH3)

Step 2: Calculate the density of gaseous arsine (AsH3)

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###### Problem Details

How many moles of gaseous arsine (AsH 3) occupy 0.0400 L at STP? What is the density of gaseous arsine?