Join StudySoup for FREE

Get Full Access to
alamo - CHEM 1405028 - Study Guide - Midterm

Description

Reviews

Chemistry : Test I Study Guice (Chapter 1 and 2) Don't forget about the age old question of What are the causes of sexual socialization?

Ch.1

- Chemicals - substances fund on the periodic table or have mother (liquid, solid, gas)

- MATTER = CONTAINS CHEMICALS

- Scientific Method

- 1) Observations - ask questions about what you see
- 2) Hypothesis - explanation of the observation
- 3) Experiments - test hypothesis
- 4) Conclusion - Is hypothesis true or false?

- Scientific Notation

Don't forget about the age old question of suppose an apartment complex converts to a condominium

- 1 < c < 10

- Measured numbers are the numbers obtained when you measure a quantity of something (Significant Figures) all the digits, including estimated digit. Sig. Fig. are used:

- to represent all the amount of error associated w/ a measurement
- are all nonzero digits and zeros between digits
- are not zeros that act as place holders before digits
- are zeros at the end of a decimal number.

- Exact numbers are not measured and do not have a limited number of significant figures. Not used to find the number of sig fig in a calculated answer.

- Numbers obtained by counting ( 8 cookies)
- Definitions that compare 2 units (1qt = 4 cups)
- Definitions of the same measuring system (1kg = 1000g)

Don't forget about the age old question of How do we determine stability?

Ch. 2

- Prefixes and Equalities - a prefix can be placed in front of any unit to increase or decrease its size by some factor of ten:

- Ex. Milli and Micro
- milligram (mg)
- microgram (mcg)

- Conversion Factors

- Equality 60min = 1h

- Metric equality 1m = 100cm
- Problem Solving using Unit Conversion

- STEP 1 STME THE GIVEN and NEEDED QUANTITIES
- STEP 2 WRITE OUT YOUR PLAN STEP
- 3 STATE THE EQUALITIES CONVERSION FA CURS STEP
- 4 SET UP THE PROBLEM TO CANCEL UNITS CALCULATE
- Ex. How many minutes are there in 1.4 days?

1.4 days minutes?We also discuss several other topics like What does mixed cost contain?

exact exact We also discuss several other topics like Differentiate macroenomics and microeconomics.

If you want to learn more check out What holds everything together that is bigger than the
nucleus, but smaller than a human
?

1.4days x

Wine is 19% Alcohol by volume. How many millimeters of alcohol are in 0. 750L?

100 ml = 1l

L=ml =100ml of alcohol

Blue Muffins have 51% dietary fiber by mass. If a pack of muffins weighs 12oz of 6, how many grams does the pack weigh?

Oz gg of fiber Given 12oz, 51% df

Oz lbg

1lb=16oz. 1lb=454g

Sig of fiber = 100g of fiber