1. H2SO4 solution, 7% concentration by weight per volume. What is the concentration in M? (Answer to 2 decimal places) 2. Wine is classified as a solution (True/False).
3. Carbon dioxide is dissolved in soft drinks (True/False).
4.1.0 mol of glucose in 1 liter of solution has a concentration equal to 0.5 mol of glucose in 500 ml of solution (True/False).
5. P 'Tum weighed 35 grams of NaOH base and put it in a beaker. Add water and stir the NaOH to dissolve, then transfer the solution into a volumetric flask. Then add water until the volume is 200 mL. How many M concentrations of NaOH are being prepared? (Answer has 1 decimal place)
6. Sea water has a boiling point. (greater than/equal to/less than) pure water, which has a boiling point equal to degrees Celsius.
7. 5 g of NaCl is added to water until the volume is 500 ml. The concentration of this solution is 1 w/v (True/False).
8. Carbon tetrachloride is soluble in benzene (True/False).
9. Determine the atomic weight of K = 39 g/mol, Br = 80 g/mol, 0.41 mol/kg (molal) KBr solution. How many percent by weight of KBr solution or percent by volume? (Answer 2 decimal places)
10. A glucose solution (C6H12O6) is required, with a concentration of 10% by weight, 700 g. How many grams of glucose must be prepared using the solution? and how many grams of water?
11. Many gases are dissolved in the air (True/False).
12. The freezing point of both solutions is equal. When the solutes in two solutions are always the same weight (True/False)
13. The number of NaCl molecules in a 1.0 molar NaCl solution of 300 ml is less than the number of NaCl molecules in 1 l of 0.3 molar NaCl solution (True/False).
14. Students report on the method of preparing the salt solution. By mixing 50 g of table salt (NaCl) with 150 mL of water, the students prepared a concentrated sodium chloride solution. (Answer as an integer) How many percent by weight per volume?
15. Syrup and brine with a concentration equal to 1 molality have the same boiling point (True/False).