| Shivani after all your studying this worksheet should be a piece of cake!
Worksheet 1 Molarity / Chapter 8 lab Molarity Questions Things to remember… Concentration- grams of solid dissolved in ml of solution. It is like density of a liquid. Standard Concentration is defined as the number of grams of solid per 1000 ml of liquid. Mole- a mole is defined as 6.02 x 1023 molecules Questions. 1. Give the equation for Concentration Molarity Standard concentration 2.What is the difference between the concentration of a solution and the molarity of a solution? 3. Find the molarity if in 1 liter of solution for the following: H2O 83 grams- CO2 92 grams- BNe3 49 grams 4. If I have 72g of the Na2HCO3, calculate the molarity. 5.In the above equation what would be the concentration? Ok last one 6. What is the concentration of 93grams of solid mixed with 41 ml of liquid? All right on to chapter 7& 8 lab questions 1. What are the signs that a reaction has occurred? 2. What proof from lab do we have that atoms are not created or destroyed during a reaction? 3. How did you prove that the yellow solid was lead iodide 4. How did you prove that atoms rearrange during a chemical raction. 5. How can you tell what the leftover reactant is? 6. What proof do you have that atoms are selective? Ok that all I have I couldn’t remember if you told me you guys are going to have ratios on the test so if you do you’re on your own STUDY HARD and I want to see all the work I asked you to do OR THERE WILL BE CONSEQUENCES hopefully I have helped and you will make a B on the test…remember all the advice I gave you! if I were you I would take more notes or you’re just wasting your parents money on me….ok I’ll shut up GO STUDY. |