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5.032 – A certain element consists of two stable isotopes

OWL Introductory Chemistry: An Active Learning Approach 7e, by Cracolice and Peters

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What is the atomic mass of the element?

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Active Example – Atomic Mass II

OWL Introductory Chemistry: An Active Learning Approach 7e, by Cracolice and Peters

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Calculate the atomic mass from the table of values.

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Active Example – Calculate R

OWL Introductory Chemistry: An Active Learning Approach 7e, by Cracolice and Peters

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Calculate the value of R

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Active Example – Determination of Molar Mass from the Ideal Gas Equation

OWL Introductory Chemistry: An Active Learning Approach 7e, by Cracolice and Peters

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Calculate the molar mass when grams, celsius, liters and torr are given.

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Active Example – Half Life III

OWL Introductory Chemistry: An Active Learning Approach 7e, by Cracolice and Peters

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A radioactive sample has a mass of x grams. After being set aside for a certain number of days (also given in a fraction of a year) the sample now contains x grams. Determine the half-life in years.

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Active Example – Half Life IV

OWL Introductory Chemistry: An Active Learning Approach 7e, by Cracolice and Peters

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Otzi was found in a glacier. Carbon dating shows x units present at his time of death and x units remaining today. The half life of carbon-14 is also given. Determine how old Otzi is.

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Active Example – Isotopes

OWL Introductory Chemistry: An Active Learning Approach 7e, by Cracolice and Peters

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Fill in the table with the following: Name of Element, Elemental Symbol, Atomic Number, Number of Protons, Number of Neutrons, Mass Number, Nuclear Symbol, Name of Isotope.

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Active Example – The Federal Aviation Administration

OWL Introductory Chemistry: An Active Learning Approach 7e, by Cracolice and Peters

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Find the volume in L when mol, atm and celsius are given.

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E14.002 – Largest volume of these gas samples

OWL Introductory Chemistry: An Active Learning Approach 7e, by Cracolice and Peters

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Which sample has the largest volume?

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E14.004 – The pressure of this gas sample

OWL Introductory Chemistry: An Active Learning Approach 7e, by Cracolice and Peters

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Find the pressure of the gas when mol, celsius and volume are given.

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