7. Complete the following table:
Element Moles Mass Num
7. Complete the following table:
Element Moles Mass Number of molecules
13. It is the component that is in a solution, in smaller quantity.
a. Solution
b. Solvent
c. Solvent
d. Soluto
14. It is the component that is in a solution in greater quantity.
a. Solution
b. Solvent
c. Solvent
d. The answers b and c are correct.
15. The quantitative expression of the dissolved amount of solute in a quantity determined solvent is known as:
a. Solution
b. Volume
c. Concentration
d. Stoichiometry
16.Express the moles of solute among the liters of solution
a. Molality
b. Molarity
c. % weight by volume
d. % weight by weight
17.Express the moles of solute between kg of solvent
a. Molarity
b. ppm
c. ppt
d. Molality
18. What is the molarity of a solution prepared by dissolving 7.50 g of nitrate of magnesium, Mg (NO3) 2 in enough water to prepare 25.0 mL of solution?
a. 10.3 M
b. 5.6 M
c. 6.5 M
d. 2.03 M
19. How many grams of sodium chloride, NaCl are needed to prepare 125 mL of 0.037 M NaCl solution
a. 1.021 M
b. 0.268 M
c. 0.201 M
d. 0.500 M
20. Calculate the molality of a solution containing 12.5 g of ethylene glycol (C2H6O2) dissolved in 135 g of water.
21. A solution of ethylene glycol contains 21.2 g of ethylene glycol (C2H6O2) in 85.4 mL of water. Calculate the freezing point and the boiling point of the solution. (Assume the water density is 1.00 g / mL)
22. At what volume should you dilute 75 mL of a 10.0 M solution of H2SO4 to obtain a 1.75 M solution of H2SO4.
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7. Complete the following table:
Element Moles Mass Num
7. Complete the following table:
Element Moles Mass Number of molecules
13. It is the component that is in a solution, in smaller quantity.
a. Solution
b. Solvent
c. Solvent
d. Soluto
14. It is the component that is in a solution in greater quantity.
a. Solution
b. Solvent
c. Solvent
d. The answers b and c are correct.
15. The quantitative expression of the dissolved amount of solute in a quantity determined solvent is known as:
a. Solution
b. Volume
c. Concentration
d. Stoichiometry
16.Express the moles of solute among the liters of solution
a. Molality
b. Molarity
c. % weight by volume
d. % weight by weight
17.Express the moles of solute between kg of solvent
a. Molarity
b. ppm
c. ppt
d. Molality
18. What is the molarity of a solution prepared by dissolving 7.50 g of nitrate of magnesium, Mg (NO3) 2 in enough water to prepare 25.0 mL of solution?
a. 10.3 M
b. 5.6 M
c. 6.5 M
d. 2.03 M
19. How many grams of sodium chloride, NaCl are needed to prepare 125 mL of 0.037 M NaCl solution
a. 1.021 M
b. 0.268 M
c. 0.201 M
d. 0.500 M
20. Calculate the molality of a solution containing 12.5 g of ethylene glycol (C2H6O2) dissolved in 135 g of water.
21. A solution of ethylene glycol contains 21.2 g of ethylene glycol (C2H6O2) in 85.4 mL of water. Calculate the freezing point and the boiling point of the solution. (Assume the water density is 1.00 g / mL)
22. At what volume should you dilute 75 mL of a 10.0 M solution of H2SO4 to obtain a 1.75 M solution of H2SO4.