Multiple Choice
A 5.00-L tank contains helium gas at 1.50 atm. What is the pressure of the gas in mmHg?
7. Gases
Pressure Units
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
If a gas pressure gauge reads 15 mm Hg, what is the pressure in atmospheres?
A
0.0197 atm
B
0.00197 atm
C
1.97 atm
D
0.197 atm
Verified step by step guidance1
Understand that the problem requires converting pressure from millimeters of mercury (mm Hg) to atmospheres (atm).
Recall the conversion factor: 1 atm is equivalent to 760 mm Hg.
Set up the conversion by dividing the given pressure in mm Hg by the conversion factor: \( \text{Pressure in atm} = \frac{\text{Pressure in mm Hg}}{760} \).
Substitute the given pressure value into the equation: \( \text{Pressure in atm} = \frac{15}{760} \).
Perform the division to find the pressure in atmospheres, ensuring the result matches one of the provided options.
Related Videos
Related Practice
