Chm1045 - Study guides, Class notes & Summaries

This document just had a lot of important notes, important definitions, and lots of examples, and everything is clean and well-made in order to keep everything from being confusing as long as you understand everything up until this point. There are some explanations but this is from the point of view of an average person that just happened to get an A in the class and pass the final for General Chemistry 1 with a %90.

This document just had a lot of important notes, important definitions, and lots of examples, and everything is clean and well-made in order to keep everything from being confusing as long as you understand everything up until this point. There are some explanations but this is from the point of view of an average person that just happened to get an A in the class and pass the final for General Chemistry 1 with a %90.

What was the purpose of the "properties and changes of matter" lab?To examine and describe physical and chemical properties of various substances, and to cause physical and chemical changes within these substances. What is matter?Any and all material of which the universe is composed of. Anything that has mass and occupies space. Matter exists in:three different states: solid, liquids, and gas What is a pure substance?A sample of matter that has identical properties and fixed composi...

Nur Chm1045 Top answers

These are slides that my teacher made for the class. They are really well done with lots of examples, definitions for everything, and everything you need to know from the book. I didn’t use a book for this class, it wasn’t needed. These slides should cover about %95 of the material your class is covering or will cover because it only goes over the very important stuff that will stay with you if you move up to the next class, and just core concepts of general chemistry. Other stuff is left ou...

Describe the step by step method one should use to measure out 5.00 grams of calcium chlorideMeasuring out Measure outPlace weighing paper then TARE. Add calcium until obtaining 5.00 grams Sep by step to determine the mass of 25 mL of orange juiceMeasure mass of container , then add 25 mL of OJ and subtract the difference Determine mass of a nickle byMeasuring directly Determine the mass of NaCl crystalsMeasuring out Direct or measuring out?Direct is more accurate, less error

Accurancy how close close a measurement is to a true value. (how close the darts are to the bulls-eye) Error describes the accuracy of a measurement. =I true value-measured value I Percent error =(Error X 100%)/True Value Precision refer to the agreement among a series of measurements of the same quantity. (how close the measurements are to each other) Standard deviation the precision of a series of measurements.

These are slides that my teacher made for the class. They are really well done with lots of examples, definitions for everything, and everything you need to know from the book. I didn’t use a book for this class, it wasn’t needed. These slides should cover about %95 of the material your class is covering or will cover because it only goes over the very important stuff that will stay with you if you move up to the next class, and just core concepts of general chemistry. Other stuff is left ou...