Homework Answers
Add Answer to:
Perform dilution calculations Question What is the concentration of a solution of K, HPO, inif 250...
Perform dilution calculations Question How many milliliters of a 0.80 mM ammonium hydroxide solution are required...
Perform dilution calculations Question How many milliliters of a 0.80 mM ammonium hydroxide solution are required to create 2.0 L of 0.20 mM solution? Do not include units in the answer. Your answer should have two significant figures. (Round to the nearest tenth.) Provide your answer below: FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
Perform calculations for polyprotic acids Question Determine the concentration of Croa in a 0.031 M solution...
Perform calculations for polyprotic acids Question Determine the concentration of Croa in a 0.031 M solution of chromic acid, H, CrO4. H,CrO4(aq) + H20(I) = H30+(aq) + HCrO] (aq) Ka = 9.6 HCrO2 (aq) + H2O(l) = H30+(aq) + Cro2- (aq) Kaz = 3.2 x 10-7 Report your answer in scientific notation with the correct number of significant figures. Provide your answer below:
Perform various calculations related to electrolysis Question What charge (in coulombs) passes through a cell with...
Perform various calculations related to electrolysis Question What charge (in coulombs) passes through a cell with a current of 6.20 A in 20.0 min? Remember to use correct significant figures in your answer (round your answer to the nearest whole number). Provide your answer below:
Perform various calculations related to electrolysis Question What charge (in coulombs) passes through a cell with a cu...
Perform various calculations related to electrolysis Question What charge (in coulombs) passes through a cell with a current of 15.30 A in one hour? Remember to use correct significant figures in your answer (round your answer to the nearest whole number). Provide your answer below: гс
D Question 44 4 pts 365 Molarity & solution concentration: Your answers need to have the...
D Question 44 4 pts 365 Molarity & solution concentration: Your answers need to have the correct number of significant figures To prepare 1.50 L of a 2.8 M solution using 650 mL of a stock solution, what concentration of stock solution would be required for this dilution?
You are provided with a stock solution with a concentration of 1.0x10-5 M. You will be...
You are provided with a stock solution with a concentration of 1.0x10-5 M. You will be using this to make two standard solutions via serial dilution. 1. Perform calculations to determine the volume of the 1.0x10-5 M stock solution needed to prepare 10.0 mL of a 2.0x10-6 M solution. Perform calculations to determine the volume of the 2.0x10-6 M solution needed to prepare 10.0 mL of a 5.0x10-7 M solution. You are welcome to do the calculations in your notebook...
my questions are the following: A) what is the concentration of the stock solution of LDH?...
my questions are the following:
A) what is the concentration of the stock solution of LDH?
B) Based upon Part B of the protocol, show your calculations to
make the 250ug/ml LDH solution.
C) Based upon Part B of the protocol, show your calculations to
make the 25ug/ml LDH solution.
You will be given 60 ul of LDH stock solution. You need to determine the protein concentration of this stock solution and then perform a serial dilution to end up...
How many milliliters of a 5.0 MM sodium chloride solution is required to prepare 50. mL...
How many milliliters of a 5.0 MM sodium chloride solution is required to prepare 50. mL of 2.0 uM solution? Do not include units in the answer. Your answer should have two significant figures. (Round to the nearest whole number.) Provide your answer below:
Dilution is a process in which the concentration of a solution is lowered by adding more...
Dilution is a process in which the concentration of a solution is lowered by adding more solvent. Some of the reasons dilutions are performed are to minimize measurement errors when preparing a series of solutions at different concentrations, to save time and laboratory space, and to make more accurate measurements on an analytical balance when the target concentration is very low. The new concentration of a diluted solution can be determined from the following equation, sometimes called the dilution equation,...
O STOICHIOMETRY Dilution A chemist makes 80.0 ml. of potassium dichromate (K,Cr,0,) working solution by adding...
O STOICHIOMETRY Dilution A chemist makes 80.0 ml. of potassium dichromate (K,Cr,0,) working solution by adding distilled water to 60.0 ml. of a 0.0763 M stock solution potassium dichromate in water. Calculate the concentration of the chemist's working solution. Be sure your answer has the correct number of significant digits 다,p
Perform dilution calculations Question How many milliliters of a 0.80 mM ammonium hydroxide solution are required to create 2.0 L of 0.20 mM solution? Do not include units in the answer. Your answer should have two significant figures. (Round to the nearest tenth.) Provide your answer below: FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
Perform calculations for polyprotic acids Question Determine the concentration of Croa in a 0.031 M solution of chromic acid, H, CrO4. H,CrO4(aq) + H20(I) = H30+(aq) + HCrO] (aq) Ka = 9.6 HCrO2 (aq) + H2O(l) = H30+(aq) + Cro2- (aq) Kaz = 3.2 x 10-7 Report your answer in scientific notation with the correct number of significant figures. Provide your answer below:
Perform various calculations related to electrolysis Question What charge (in coulombs) passes through a cell with a current of 6.20 A in 20.0 min? Remember to use correct significant figures in your answer (round your answer to the nearest whole number). Provide your answer below:
Perform various calculations related to electrolysis Question What charge (in coulombs) passes through a cell with a current of 15.30 A in one hour? Remember to use correct significant figures in your answer (round your answer to the nearest whole number). Provide your answer below: гс
D Question 44 4 pts 365 Molarity & solution concentration: Your answers need to have the correct number of significant figures To prepare 1.50 L of a 2.8 M solution using 650 mL of a stock solution, what concentration of stock solution would be required for this dilution?
my questions are the following:
A) what is the concentration of the stock solution of LDH?
B) Based upon Part B of the protocol, show your calculations to
make the 250ug/ml LDH solution.
C) Based upon Part B of the protocol, show your calculations to
make the 25ug/ml LDH solution.
You will be given 60 ul of LDH stock solution. You need to determine the protein concentration of this stock solution and then perform a serial dilution to end up...
How many milliliters of a 5.0 MM sodium chloride solution is required to prepare 50. mL of 2.0 uM solution? Do not include units in the answer. Your answer should have two significant figures. (Round to the nearest whole number.) Provide your answer below:
O STOICHIOMETRY Dilution A chemist makes 80.0 ml. of potassium dichromate (K,Cr,0,) working solution by adding distilled water to 60.0 ml. of a 0.0763 M stock solution potassium dichromate in water. Calculate the concentration of the chemist's working solution. Be sure your answer has the correct number of significant digits 다,p
Most questions answered within 3 hours.
-
What is the net ionic equation for the reaction that would occur
when an aqueous solution...
asked 1 hour ago -
A
student bought $1000 worth of furniture. What is the equivalent
annual cost if it is...
asked 1 hour ago -
What taboo subject did Ida B. Wells suggest was consensual
between black men and white women?...
asked 3 hours ago -
You have just been hired by the EPA to help with the new gas
mileage standards...
asked 4 hours ago -
4) A firm is hit by increases in its wage rate, w.
a) How does this...
asked 4 hours ago -
A square current loop 5.4 cm on each side carries a 510 mA
current. The loop...
asked 6 hours ago -
What are five tips in conducting knowledge assessment/literature
review research? Each of these tips needs to...
asked 7 hours ago -
Antigen presenting cells link innate and adaptive immune
responses. In the theoretical scenario where phagosomes cannot...
asked 7 hours ago -
Dealing with conflict, in my opinion, is a skill and an art. I
believe that those...
asked 8 hours ago -
6. A long straight wire with circular cross section and radius
1.5 cm carries a 1.2...
asked 8 hours ago -
Deacon Corporation has provided the following financial data
from its balance sheet and income statement:
Year...
asked 8 hours ago -
List and discuss at least three variables from everyday life for
which you expect the variable ...
asked 8 hours ago