Adv: Do Now & Agenda Take out packet from yesterday to be checked (Boyles, Charles’, etc.) Today: Avogadro’s Law, Ideal Gas Law To complete: pgs 3 & 5.

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Presentation transcript:

Adv: Do Now & Agenda Take out packet from yesterday to be checked (Boyles, Charles’, etc.) Today: Avogadro’s Law, Ideal Gas Law To complete: pgs 3 & 5. Unit 4 Test WED 3/16

Avogadro’s Law Equal volumes of gases contain the same # of molecules

Avogadro’s Law ratio of # molecules = #moles =volume 2 molec 1 molec 2 Liters 1 Liter 2H2 + O2  2H2O

Avogadro’s Law Direct relationship increases As volume increase the number of moles _____________.

Molar Volume The volume of one mole of a substance 1 mole of any gas at STP is 22.4L If you have one mole each of O2 and H2, they will have the ______________ volume and __________ masses. same different

𝒙 𝟐𝟐.𝟒 𝑳 𝟏 𝒎𝒐𝒍𝒆 0.0680 mol 7.08 mol 𝑿 𝟐𝟐.𝟒 𝑳 𝟏 𝒎𝒐𝒍𝒆

PV=nRT Ideal Gas Law n= # moles R=universal gas constant Will be GIVEN on tests/quizzes! R is the universal gas constant. To determine which R to use in your equation you have to look at the _____________. Pressure units being used!!