Danika mixed 70g of lemonade in 900ml of water since she liked very plain lemonade for her sensitive taste buds. This means the drinks concentration should be 0.77g/ml. True or False?
False.
70g/900ml=7.7g/100ml
Hunter dissolves 76 ml of Hot Chocolate mix into 150 ml of cold water. What is the concentration percentage?
76ml/150ml=0.506 x100 = 51%
Elena wants to set up a lemonade stand to make some money. She discovers that the customers like a 25% concentrated solution the best. If she makes 1L of juice, how many ml of solute should she add?
1L=(1000ml) x 0.25 = 250ml of solute
If Bella the good witch needs her potion of unicorn tears to be 37% tears and 63% river water. How much of each must she add to a 250ml solution?
250ml x 0.63= 157.5ml
250ml x 0.37= 92.5ml
Bella will need 157.5ml of river water, and 92.5ml of unicorn tears.
