Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Add Answer to:
4 (10 pts). To determine unknown chloride content, we used gravimetry of excessive reagent AgNO, solution...
To determine unknown chloride content, we used gravimetry of excessive reagent AgNO; solution added into 5.2...
To determine unknown chloride content, we used
gravimetry of excessive reagent AgNO; solution added into 5.2 g of
an unknown soluble chloride sample, and collected 0.32 g AgCl in
purified crystal. What was the Cl content (in wt%) in the original
sample?
4 (10 pts). To determine unknown chloride content, we used gravimetry of excessive reagent AgNO3 solution added into 5.2 g of an unknown soluble chloride sample, and collected 0.32 g AgCl in purified crystal. What was the Cl-...
QUESTION 1 A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this...
QUESTION 1 A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this solution was added the solution that contains plenty of AgNO3. AgBr precipitates were formed. The precipitate were filtered and measured to be is 0.6964 g. What is the molarity of bromide ion in the original sample solution? The molar mass of Br = 80.0 g; the molar mass of AgBr = 188 g. (Solution) AgNO, is soluble and thus exists Ag+ ion and NO3-ion....
Question A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this solution...
Question
A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this solution was added the solution that contains plenty of AgNO3. AgBr precipitates were formed. The precipitate were filtered and measured to be is 0.6964 g. What is the molarity of bromide ion in the original sample solution? The molar mass of Br = 80.0 g; the molar mass of AgBr = 188 g. (Solution) AgNO, is soluble and thus exists Ag+ ion and NO3-ion. Ag+...
Only answer the first picture. Second is just there as a reference Sulfate concentration in the...
Only answer the first picture. Second is just there as a
reference
Sulfate concentration in the seawater is about 28 mM (0.028 M). Take the reverse approach to the calculation procedure in the previous Question #1 (so called a backward calculation) and find a rough estimate for the volume of the seawater sample you may need to take from the beach like the one below. A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this solution...
5. Suppose that a 0.2045g Unknown sample is analyzed using the procedure for this lab experiment....
5. Suppose that a 0.2045g Unknown sample is analyzed using the procedure for this lab experiment. If the initial crucible weight is 3.0531g and the final crucible weight is 3.5016g. what is the%Cl by mass of the Unknown sample? Show all work. PRELAB: Experiment 5: Gravimetric Analysis is the most common method for isolating and analyte for gravimetric analysis 2. Nucleations sites are important to insure the formation of large This is achieved more efficiently by mixing slowly and keeping...
8. (12 pts) Elemental mass percent compositioncan can be used to determine the identiy of an...
8. (12 pts) Elemental mass percent compositioncan can be used to determine the identiy of an unknown substance. a The hallucinogenic drug LSD has the molecular formula C20HasN30. If the molecular mass of LSD is 323.43 g/mol, what is its mass percent 0? b. Campus security finds an unknown sample that they suspect is LSD. The unknown sample contains 74.07% 7.95% H, and 9.99% N. by mass. Keeping in mind the law of conservation of mass, determine the mass percent...
1. A student carries out a back titration to determine the concentration of ammonium chloride in a solution. The student...
1. A student carries out a back titration to determine the concentration of ammonium chloride in a solution. The student collects 10.80 mL of the original NH4Cl solution and dilutes it to 250.0 mL (we will refer to this as the dilute NH4Cl solution). Then 25.00 mL of the dilute NH4Cl solution are transferred to an Erlenmeyer flask and 25.00 mL of 0.1963 M NaOH are added. Calculate the moles of NaOH added to this Erlenmeyer flask. 2. In the...
4. (a) Determine the experimental concentration of protein in the unknown solution in mg/mL using the...
4. (a) Determine the experimental concentration of protein in the unknown solution in mg/mL using the Part II Data Table and the equation on page 2 for the absorbance assay at 280 nm. Hint: Convert the molar concentration (M or moles/liter) of BSA from absorbance assay at 280 nm method to mg/mL, assume that the molecular weight of BSA = 66.5 kDa [7 points 6500 g/mol Post-lab 10 Report Form: Determination the Concentration of a Protein You must show your...
I need helppp with my AP chem lab
Purpose: To calculate the amount of AgNO3 present in an unknown solution of water through the process of gravimetric analysis with NaCl. Background: Have you ever had difficulty lathering soap or find that the scum in your shower constantly needs to be removed? These are signs of “hard water.” Soap does not lather well in hard water because metal ions, such as Ca2+, form precipitates, creating “soap scum.” A precipitate is an insoluble compound that forms when soluble ions in...
Separating a Mixture, Recrystallization, pre-lab assignment could you also explain why you chose that substance for...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
To determine unknown chloride content, we used
gravimetry of excessive reagent AgNO; solution added into 5.2 g of
an unknown soluble chloride sample, and collected 0.32 g AgCl in
purified crystal. What was the Cl content (in wt%) in the original
sample?
4 (10 pts). To determine unknown chloride content, we used gravimetry of excessive reagent AgNO3 solution added into 5.2 g of an unknown soluble chloride sample, and collected 0.32 g AgCl in purified crystal. What was the Cl-...
QUESTION 1 A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this solution was added the solution that contains plenty of AgNO3. AgBr precipitates were formed. The precipitate were filtered and measured to be is 0.6964 g. What is the molarity of bromide ion in the original sample solution? The molar mass of Br = 80.0 g; the molar mass of AgBr = 188 g. (Solution) AgNO, is soluble and thus exists Ag+ ion and NO3-ion....
Question
A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this solution was added the solution that contains plenty of AgNO3. AgBr precipitates were formed. The precipitate were filtered and measured to be is 0.6964 g. What is the molarity of bromide ion in the original sample solution? The molar mass of Br = 80.0 g; the molar mass of AgBr = 188 g. (Solution) AgNO, is soluble and thus exists Ag+ ion and NO3-ion. Ag+...
Only answer the first picture. Second is just there as a
reference
Sulfate concentration in the seawater is about 28 mM (0.028 M). Take the reverse approach to the calculation procedure in the previous Question #1 (so called a backward calculation) and find a rough estimate for the volume of the seawater sample you may need to take from the beach like the one below. A 20.0 mL sample solution contains unknown amount of bromide ion (Br). To this solution...
5. Suppose that a 0.2045g Unknown sample is analyzed using the procedure for this lab experiment. If the initial crucible weight is 3.0531g and the final crucible weight is 3.5016g. what is the%Cl by mass of the Unknown sample? Show all work. PRELAB: Experiment 5: Gravimetric Analysis is the most common method for isolating and analyte for gravimetric analysis 2. Nucleations sites are important to insure the formation of large This is achieved more efficiently by mixing slowly and keeping...
8. (12 pts) Elemental mass percent compositioncan can be used to determine the identiy of an unknown substance. a The hallucinogenic drug LSD has the molecular formula C20HasN30. If the molecular mass of LSD is 323.43 g/mol, what is its mass percent 0? b. Campus security finds an unknown sample that they suspect is LSD. The unknown sample contains 74.07% 7.95% H, and 9.99% N. by mass. Keeping in mind the law of conservation of mass, determine the mass percent...
4. (a) Determine the experimental concentration of protein in the unknown solution in mg/mL using the Part II Data Table and the equation on page 2 for the absorbance assay at 280 nm. Hint: Convert the molar concentration (M or moles/liter) of BSA from absorbance assay at 280 nm method to mg/mL, assume that the molecular weight of BSA = 66.5 kDa [7 points 6500 g/mol Post-lab 10 Report Form: Determination the Concentration of a Protein You must show your...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
Most questions answered within 3 hours.
-
Implement C++ program for each of the following.
Let D = [-48, -14, -8, 0, 1,...
asked 10 minutes ago -
Consider a labor market in which LD = 400 – 4W and LS = 250 +...
asked 23 minutes ago -
Let’s say you are teaching a typically-developing young child
how to eat with a spoon. Describe...
asked 7 minutes ago -
Ask Your Teacher A toy gun uses a spring to project a 5.6-g soft
rubber sphere...
asked 19 minutes ago -
*****DO NOT ANSWER THIS QUESTION IF YOU DON'T
KNOW*******
Question - PERSONAL DEVELOPMENT ESSAY and Detailed...
asked 26 minutes ago -
A certain rifle bullet has a mass of 5.25 g. Calculate the de
Broglie wavelength of...
asked 51 minutes ago -
Research new software products that assist in project
communication management. Write a paper summarizing your findings,...
asked 49 minutes ago -
the figure below to the left shows a beaker completely filled
with water. then a block...
asked 47 minutes ago -
what is the duistribution channels of HUL in india and how they
distribute?
how is this...
asked 54 minutes ago -
Batteries play an important role in our everyday lives. From
making many devices mobile, to allowing...
asked 1 hour ago -
It is possible to iterate through an array quickly and easily
using a loop?
asked 1 hour ago -
Determine the pHpH of an HFHF solution of each of the following
concentrations. The KAKA value...
asked 1 hour ago