Chemistry grade 11 help

1. If we want to make up 1L of a 3.0M concentration solution, we should use the following procedure:
a. Place 3.0 mol of a solvent in a volumetric flask and add enough solute to equal a volume of 1L.
b. Place 3.0 mol of a solute in a volumetric flask and add enough solvent to equal a volume of 1L.
c. Place 3.0 mol of a solute in a volumetric flask and add 1L of solvent
d. Place 1.5 mol of a solute in a volumetric flask and add 0.5L of solvent

2. If 39.6 of KCIO4 are dissolved in 125ml of water, calculate the molarity of the resulting solution:
a. 0.036Mb. 35.75M
c. 2.56M
d. 4.76M

3. Which of the following pairs of ions will form a precipitate with MgSO4.
a. Sr, OH
b. Sr, S
c. Na, OH
d. Na, CO3

1. b. Place 3.0 mol of a solute in a volumetric flask and add enough solvent to equal a volume of 1L.


2. KClO4 mass is 138.5g/m
[39.6g/138.5]/0.125L =2.29M ... c. 2.56M ???

a. Sr, OH

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