Question

1.The concentration of the diluted solution determined in part b and in part c must be equal. how do the values obtained compare? explain

part b: preparation of a dilution solution

standard solution volume used: 10.00 mL

final volume of the solution: 25.00 mL

concentration of the standard solution:

0.800 mol/L

part c: experimental determination of the concentration of the diluted solution

dough test tube with residue: 46.19g

dough test tube empty: 47.42g

volumen of solution used: 3.00mL or 0.003L

mass of the residue (solute):

47.42g - 46.19g= 1.3g

molarity of the diluted solution: 0.13mol/L

2. Describe the preparation of 250mL of a 0.006M Na2SO4 solution from the pure solid reagent.

3.If 25mL of 0.10M HCl is diluted to 500mL of solution, what is the concentration of the resulting solution?

Answer 1