1. Calculating Concentrations

2. This line means “in”. How to write … One drop of dye in 5 mL of water
How else could you write this?
This line means “in”.

3. How many drops to make these the same concentration?2
is the same concentration as

4. How many drops to make these the same concentration?6
is the same concentration as

5. How many drops to make these the same concentration?10
is the same concentration as

6. Look for a pattern…

7. How many grams to make these the same concentration?10
is the same concentration as

8. How many grams to make these the same concentration?15
is the same concentration as

9. How many grams to make these the same concentration?20
is the same concentration as

10. How many grams to make these the same concentration?25
is the same concentration as

11. How many grams to make these the same concentration?
500
is the same concentration as

12. How many grams to make these the same concentration?
500
is the same concentration as

13. It takes 500 grams for both because 1000 mL is the same as 1 L.

14. Concentration Units Acceptable Standard
The number of grams
in 1 litre. g L

15. Copy this in your notebook!
Making Life Easier
10 mL x = 1000 mL = 1 L
50 mL x = 1000 mL = 1 L
100 mL x = 1000 mL = 1 L
200 mL x = 1000 mL = 1 L
250 mL x = 1000 mL = 1 L
500 mL x = 1000 mL = 1 L
100 20 10 5 4 2
Copy this in your notebook!

16. Worksheet
Sage and Scribe