CHEMISTRY TEST 1 REVIEW
Show your steps in solving these equations:
1. A 5mL sample of water has a mass fo 5g. What is the density of water?
2. An object with a mass of 7.5g raises the level of water in a graduated cylinder from
25.1mL to 30.1mL. What is the density of the object?
3. The density of aluminum is 2.7g/mL. What is the volume of 8.1g of aluminum?
Temperature can be recorded in Kelvins (K) and Celsius (C).
4. What is the formula for converting Celsius to Kelvins?
a. K =
5. A solution has a boiling point of 128 degrees C. What is the temperature in K?
6. A gas has a temperature of 303K in the lab. What is the temperature in Celsius?
7. Convert 90 degrees C to K
Sig Fig/Sci. Not. Practice
8. Sig Figs:
a. 20500 ____________
b. 0.0500 ____________
c. 1.0500 ____________
d. 6209
____________
9. Scientific Notation:
a. 890,000 x 505 =
________________________
b. 0.000700/4.00 =
________________________
c. 2.83 𝑥103 x 9.14𝑥106 = ______________________
10. Put the following into scientific notation:
a. 5892
____________
b. 0.94
____________
c. 0.00000451
____________
d. 100.28
11. Take the following out of scientific notation:
a. 8.02× 103
____________
b. 8.02× 10−3
____________
c. 5.87× 105
____________
d. 5.87× 10−5
____________
12. Definitions:
a. Mass:
b. Chemistry:
c. Matter:
d. Dependent Variable:
e. Independent Variable:
f. Density:
g. Qualitative Characteristics:
h. Quantitative Characteristics:
i.
Kilo-
13. Things to Know:
a. How to prepare an acid-water solution
b. Lab safety rules
c. Accuracy vs. Precision
d. How to calculate percent error
e. How to read a graph