Question | Answer |
Solutions, Colloids, and Suspensions are not pure substances, they are | mixtures |
In a saltwater solution, which is the solvent and which is the solute | the salt is the salute and the water is the solvent |
What term is used when a solution can not dissolve any more particles ? | saturated |
What term is used for solid (usually metal) solutions ? Give three examples. | alloys
bronze,brass and metals |
Milk, Jell-o (or jelly), mayonnaise, and blood are all examples of | colloids |
What is the formula for the concentration of a solution | mass of the solute over volume of the solvent |
If 5g of salt is stirred in 50mL of water, what is the concentration | 0.1g/ml H20 |
How can supersaturated solutions be made ? | make a saturated solution of sugar by adding sugar to water When the water cools back down the sugar will still be dissolved even though the water should only dissolve some of the sugar. |
Are they stable ? | no |
How could you make more solids dissolve in H2O | increase heat and stir |
How could you make more gas dissolve in H2O | increase pressure and let it cool |
An acid has a high concentration of which ion | H |
A base has a high concentration of which ion | OH |
How much more acidic is pH of 4 than pH of 5 | 10 |
How much more acidic is pH of 2 than pH of 4 | 1000 |
Give 3 examples of bases | bleach, dish washer and NaOH |
What is the pH of water | 7 |
How is pH measured (with which tool) ? | litmus paper |