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Number of moles = mass/molar mass; can substitute for n in the ideal gas law, giving PV = m/M (RT); can isolate m/V which gives: density = M x P/RT; expresses that: the density of a gas is directly proportional to its molar mass; the density of a gas is inversely proportional to the temperature (as the volume of a gas increases with temp, the same mass occupies more space so the density is lower)

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Science Journal: Density Triangle Foldable Completed

Not only does this foldable provide all variations of the formula involving Mass, Volume and Density, but the foldout part already has the definitions filled in for you. A GREAT piece to add into a journal to help students with vocabulary and with the understanding of the mathematics involved in calculating density.

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Great tool for solving three simple algebraic equations essential to solution chemistry. Just cover up the variable you are solving for, and the arrangement of the other two variables shows if you should multiply or divide them to solve for your unknown. For example, multiple molarity (M) and volume (L) to solve for moles of solute in a solution. Also illustrates the central role of the mole as a counting unit!

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Introduction to the mole: counting atoms, moles and their uses, molar mass, molar volume and a nice concept map. #mole #chemistry

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Mole Practice Worksheet #5: Molar Volume of a Gas

This worksheet consists of 13 problems. Students will practice converting between moles / grams / molecules. / molar volume of a gas. Your download will

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chenistry: Molar Volume of a Gas at STP (by Bev)

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