Ideal Gas law & Density HW

PV=nRT

• Charles Law
• Boyle's Law
• Combined Gas Law
• Ideal Gas Law

When 0.250 moles of a gas is placed in a container at 25 °C, it exerts a pressure of 700 mm Hg. What is the volume of the container?

• 0.557 Liters

• 6.64 Liters

• 8.74 Liters

• 0.0087 Liters

How many moles of oxygen must be placed in a 3.00 liter container in order to exert a pressure of 2.00 atmospheres at 25 °C?

• 146.8 moles
• 0.245 moles
• 21778 moles
• 4.08 moles

Tags

NGSS.HS-PS1-7

An 18 liter container holds 16.00 grams of oxygen gas (O₂) at 45 °C. What is the pressure in the container?

• 0.725 atm
• 11.0 atm
• 23.2 atm
• 1.45 atm

At what temperature (in Kelvin) would 4.0 moles of hydrogen gas in a 100 liter container exert a pressure of 1.00 atmospheres?

• 0.0305 K
• 0.487 K
• 32.8 K
• 304.5 K

A 500 mL metal cylinder holding 0.100 moles of helium gas is known to rupture at a pressure of 10 atmospheres. At what temperature, in °C, will the container fail?

• 336 °C
• 608 740 °C
• - 272.4°C
• 609 °C

Tags

NGSS.HS-PS3-4

The tool used to measure the mass of a substance or object is a ______________.

• balance
• graduated cylinder
• ruler
• thermometer

Tags

NGSS.5-PS1-3

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Tags

CCSS.7.RP.A.3

Which units of measurement are used for volume?

• grams
• centimeters
• grams/milliliter
• milliliter

Tags

CCSS.3.MD.A.2

Which lab tool might you use to measure the volume of a liquid?

• electric scale
• bunsen burner
• test tube
• graduated cylinder