# SOLUTIONS and CONCENTRATIONS questions

advertisement
```SOLUTIONS and CONCENTRATIONS ASSESSMENT (F)
Name: ________________________________ 8____ date: __________________
OUTCOME #2: Investigate and describe the composition of fluids, and interpret the
behavior of materials in solution.
b• investigate the solubility of different materials, and describe their concentration
Questions from page 28 of Science in Action textbook. (formative)
1.
2.
What is the difference between a diluted solution and a concentrated solution?
(use terms like solvent and solute)
If a solution has a concentration of 75g per 100mL, what does this mean?
3. Calculate the concentrations in grams per 100mL: (show your work) Circle the
new concentration.
a. 2.1g/17mL
b. 2.61g/18mL
c. 2.78g/20mL
d. Which solution (a, b, c) is more concentrated?
4. What is the difference between a saturated solution and an unsaturated solution?
(use terms like solvent and solute)
5. What is the solute in a fruit punch drink?
6. What does soluble mean? Use the particle theory to explain.
7. Define insoluble and give two specific examples.
Beginning
Acceptable
Proficient
Mastery
 demonstrates limited academic
achievement
 shows an incomplete understanding
of the learning
 demonstrates basic
academic achievement
 shows an adequate
understanding and simplistic
application of the learning
 demonstrates strong
academic achievement
 shows a solid understanding
and relevant application of
the learning
 demonstrates exemplary
academic achievement
 shows an in-depth
understanding and
insightful application of the
learning in a variety of
situations
```