Slide 1 Slide 2 ENTHALPY (H) Accounts for heat flow in chemical reactions happening at constant pressure when work is performed due to P-V change. The enthalpy of a substance…

Slide 1Stoichiometry Slide 2 Stoichiometry is the part of chemistry that studies amounts of substances that are involved in reactions. It could be amounts of substances before…

1. Final Exam Review Clicker Edition!  2. 1. You can identify a metal by carefully determining its density. A 33.39 g sample of an unknown metal is 1.50 cm long, 2.50…

Stoichiometry – “Fun With Ratios” Main Idea: The coefficients from the balanced equation tell the ratios between reactants and products. This ratio applies to #’s…

FORMULAS, EQUATIONS AND MOLES Chemical Equation Stoichiometry Chemical Formula CHEMICAL REACTION Rearrangement of the atoms present in the reacting substances to give new…

What have we learned? Sometimes heat is given off during a chemical reaction. This makes it feel hotter. Sometimes heat is absorbed during a chemical reaction. This makes…

CHEM 434 - SPRING 2007 1/22/07 CHEM 304 â 3/16/12 Your âPersonal Carbon Footprintâ Assignment - Chemical Mass & Energy Balance - Some specifics Exam #1 Average = 1…

~ It ~ 11e:J) B (0 ~1lADenT~ Sf,tIS~eC1I Cft(7f.1 IIV MOLE CONCEPT ATOMIC MASS * By international agreement, an atom of the carbon isotope (carbo-12) that has six protons…

Chapter 12: Gases and Their Properties Properties of Gases Gases form homogeneous mixtures Gases are compressible All gases have low densities air 0.0013 g/mL water 1.00…

CHAPTER 3:1 MOLE === ATOMIC MASS === AV.# Sample problems :1How many moles are in 24 g of k ? 2- How many atoms are in 286 g of k ? 3- What is the weight of 66 mole of k…