The concentration of ions present in 42 .0 mL of 0 .170 M NaOH solution with 37 .6 mL of 0 .400 M NaOH solution. Concept introduction: Salts are those that are completely dissociate into respective ions in the solution. Concentration is the relative quantity of substance present in the solution or it is the ratio of constituent abundance to the volume of the solution.
The concentration of ions present in 42 .0 mL of 0 .170 M NaOH solution with 37 .6 mL of 0 .400 M NaOH solution. Concept introduction: Salts are those that are completely dissociate into respective ions in the solution. Concentration is the relative quantity of substance present in the solution or it is the ratio of constituent abundance to the volume of the solution.
Interpretation: The concentration of ions present in 42.0mL of 0.170MNaOH solution with 37.6mL of 0.400MNaOH solution.
Concept introduction:
Salts are those that are completely dissociate into respective ions in the solution.
Concentration is the relative quantity of substance present in the solution or it is the ratio of constituent abundance to the volume of the solution.
(b)
Interpretation Introduction
Interpretation: The concentration of ions present in 44.0 mL of 0.100MNa2SO4 with 25.0 mL of 0.150MKCl
Concept introduction:
Salts are those that are completely dissociate into respective ions in the solution.
Concentration is the relative quantity of substance present in the solution or it is the ratio of constituent abundance to the volume of the solution.
(c)
Interpretation Introduction
Interpretation: The concentration of ions present in 3.60 g KCl in 75.0mL of 0.250M
CaCl2 .
Concept introduction:
Salts are those that are completely dissociate into respective ions in the solution.
Concentration is the relative quantity of substance present in the solution or it is the ratio of constituent abundance to the volume of the solution.
Lab Data
The distance entered is out of the expected range.
Check your calculations and conversion factors.
Verify your distance. Will the gas cloud be closer to the cotton ball with HCI or NH3?
Did you report your data to the correct number of significant figures?
- X
Experimental Set-up
HCI-NH3
NH3-HCI
Longer Tube
Time elapsed (min)
5 (exact)
5 (exact)
Distance between cotton balls (cm)
24.30
24.40
Distance to cloud (cm)
9.70
14.16
Distance traveled by HCI (cm)
9.70
9.80
Distance traveled by NH3 (cm)
14.60
14.50
Diffusion rate of HCI (cm/hr)
116
118
Diffusion rate of NH3 (cm/hr)
175.2
175.2
How to measure distance and calculate rate
For the titration of a divalent metal ion (M2+) with EDTA, the stoichiometry of the reaction is typically:
1:1 (one mole of EDTA per mole of metal ion)
2:1 (two moles of EDTA per mole of metal ion)
1:2 (one mole of EDTA per two moles of metal ion)
None of the above