CHM-1045 Lecture Notes - Fall 2017 Lecture 3 - Logarithm, Scientific notation
20 Sep 2018
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Mass and weight are not the same thing, because the mass is independent of where we are (it is the sane everywhere) and the weight is dependent on gravity. Units of temperature= fahrenheit (*f) , celsius (*c) , kelvin (k) 2. *c= (*f-32)/ 1. 8 this will be on reference sheet but we need to know how to use it. ***know the relative temps associated with each scale- photo on phone *** Going to see higher temps in kelvin because zero kelvin is extremely low in terms of the other temps of the other two scales (*c and *f) In scientific notation= (6. 63 x 10^-31 x 3. 0x10^10)/ 9. 116x 10^-8. If the number is to the right of the decimal it has a negative exponent; if it is to the left then it has a positive exponent. 0. 00087 = 8. 7 x 10^-4 || 9. 8 = 9. 8x 10^0 (anything to the zero = 1) Rule 1: non-zero digits are always significant.
