You are presented with a mystery as part of your practical experiment. You have a solution of Pb(NO3)2 that has a worn label making it impossible to read. You know the concentration is below 1.0 M as you can make out "0.xxx" at the beginning of the label. In order to determine the concentration, you decide to precipitate out the lead in the solution asPbSO4. If you added 1.0 mL of the unknown Pb(NO3)2 to a test tube, what is the amount of 0.64M H2SO4 in mL you will need to add to be sure the H2SO4 is the excess reagent? NOTE: H2SO4 is expensive so you should not use more than absolutely necessary. mL H2SO4 Needed =
Ionic Equilibrium
Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
Arrhenius Acid
Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.
Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
![Practical 2
Homework Answered Due May 30th, 1:30 PM
You are presented with a mystery as part of your practical experiment. You have a solution of Pb(NO3)2
that has a worn label making it impossible to read. You know the concentration is below 1.0 M as you can make out "0.xxx" at the
beginning of the label. In order to determine the concentration, you decide to precipitate out the lead in the solution asPbSO4. If
you added 1.0 mL of the unknown Pb(NO3)2
to a test tube, what is the amount of 0.64M H2SO4 in mL you will need to add to be sure the H2SO4 is the excess reagent? NOTE:
H2SO4 is expensive so you should not use more than absolutely necessary.
mL H2SO4 Needed =
Type your numeric answer and submit
1.7
Answered - Incorrect. 0 attempt left
Practical 3
Homework Answered. Due May 30th, 1:30 PM
Type your numeric answer and submit
X
You are incorrect
After a precipitation reaction with 0.64M H2SO4 was completed, you centrifuge the sample, dry and weigh it. The ppt is found to
weigh 0.12 grams. Based on this mass, what was the original concentration of the unknown Pb(NO3)2 solution in mol/L? Answer to
3 sf.
[Pb(NO3)2] =
0.376
Resubmit
X
You are incorrect](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F18d7602f-9f25-445c-bda8-4d38e99e2d82%2F6f570c64-8471-49da-823f-b3290182185d%2F1q0lfn7_processed.png&w=3840&q=75)

Step by step
Solved in 3 steps with 6 images









