9.2 Potions Class - Concentration

The shrinking potion needs a concentration of minced daisy roots to be 12 g/L, but you only have 3 grams. How many mL of the potion could you make?

• 200 mL

• 250 mL

• 300 mL

• 350 mL

Mrs. Weasley ran out of Doxycide, and she needs your help to brew more! The recipe says to add 15 grams of ground Streeler shells to 500 mL of Bundimum Ooze. What is the concentration of the Doxycide?

• 10 g/L

• 20 g/L

• 30 g/L

• 45 g/L

The Befuddlement Draught requires dried sneezewort powder in a concentration of 40 g/L. How many grams of sneezewort would you need to make 200 mL of potion?

• 4 g

• 8 g

• 20 g

• 40 g

Your friend is really stressed out, so you brew her a Draught of Peace to help her relax. Any amount of powdered moonstone over a concentration of 5 g/L could cause major health problems. How many grams do you need to make one 100 mL dose?

• 0.5 g

• 1 g

• 5 g

• 20 g

The Ministry of Magic has hired you to find the concentration of an illegal bottle of Erumpent potion. Using Scarpin's Revelaspell, you find it has 35 grams of Erumpent horn mixed into 350 mL of Exploding Fluid. What is the concentration?

• 1 g/L

• 10 g/L

• 100 g/L

• 1000 g/L

Tags

NGSS.MS-PS1-2

Oh no!! You accidentally blew up your Aunt Marge like a balloon! How many milliliters of Deflating Potion can you make with 2 grams of stinging nettle if the potion requires a concentration of 5 g/L?

• 100 mL

• 200 mL

• 400 mL

• 500 mL

Tags

NGSS.MS-PS1-2