Chm1045 Study guides, Class notes & Summaries

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.

What are the 7 basic SI units? 1. meter (m) 2. kilogram (kg) 3. second (s) 4. Kelvin (K) 5. mole (mol) 6. ampere (amp) 7. candela (cd) error arising from the imperfections of the instrument used to make the measurement systematic error closeness to the "true" value accuracy

THIS IS THE HOME LAB ONE ASSIGNMENT

CHM1045_Study_Guide_Chapters_3_4

Review questions for exam 1 with 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...

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...

Pre lab module 7