Please include work on the ones that require work. 1. What is the solvent in a s
ID: 1016143 • Letter: P
Question
Please include work on the ones that require work.
1. What is the solvent in a solution made by mixing 100 mL of ethanol and 50 mL of water?
A. acetone B. water C. solution D. ethanol
2. When two liquids mix with each other in any ratio, we say that the substances are ___________.
A. bonded B. miscible C. dispersed D. saturated
3. BaSO4 is __________ in water.
A. molecular B. insoluble C. neutralized D. soluble
4. What is the % (w/w) concentration of KBr solution prepared by adding 15.0 grams potassium bromide to 170. g of water?
A. 8.8% B. 2.3% C. 8.1% D. 2.7%
5. What is the molarity of a solution made by dissolving 36.0 grams CH3COOH in enough water to make 750. mL of solution?
A. 0.8 mol/L B. 0.048 mol/L C. 1.3 mol/L D. 2.0 mol/L
Explanation / Answer
1) solution. Ethanol is miscible in water to form solution.
2) Miscible
3) insoluble.Baso4 is white crystalline solid insoluble in water.
4) 8.8%. 15.0g/170.0g*100=8.8%.
5) CH3COOH has molecular weight of 60.0
Now 36 GMs is dopissolved in 750 ml water.
So 36/750=0.048mol/L