A student performed the "clock" reaction described in this experiment. She set up Reaction Mixture 4 by mixing 10 mL 0.010 M KI, 10 mL 0.001 M Na,S,O,, 10 mL 0.040 M KBRO,, and 20 mL 0.10 M HCl using the procedure given. It took exactly 21 seconds for the color to turn blue.

A student performed the "clock" reaction described in this experiment. She set up Reaction Mixture 4 by mixing 10 mL 0.010 M KI, 10 mL 0.001 M Na,S,O,, 10 mL 0.040 M KBRO,, and 20 mL 0.10 M HCl using the procedure given. It took exactly 21 seconds for the color to turn blue.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: The equilibrium concentration is determined to be [NO2]= 1.05 M and [N2O4]= 2.20 M. a. Write…

Q: A solution consists of 1.50 M Ni(NO3)2 and 1.25 M Fe(NO3)2. Which species will precipitate first as…

A: Precipitation depends on the Ksp ( solubility product value). If the Ksp is lower in value, that…

Q: Write th complete, ionic and net-ionic equation for the reaction below. Add a dropperful of 0.1 M…

A: Phenolphthalein HPh splits into its ions H+ and Ph-, while NaOH splits into Na+ and OH-By mixing HPh…

Q: Bromine monochloride is synthesized using the reaction Br, (g) + Cl,(g) = 2 BrCl(g) K, = 1.1 × 10-4…

A: Kp:- It's an equilibrium constant which is the ratio of the products in gaseous state and the…

Q: Time left: 68m 6s A solution is made by mixing 15.40 mL of 4.00 M acetone, 16.34 mL of 1.00 M HCI,…

A: Answer:Number of moles of any specie in a solution is equal to the product of its molar…

Q: After completing part II of the experiment, a student uses her calibration curve to find that the…

A: We would first write a reaction between Fe3+ and SCN- to form product [FeNCS2+] , then we would…

Q: A solution is 0.011 Min both Br¯ and SO42.A 0.191 Msolution of lead(II) nitrate is slowly added to…

A: Answer :- Below I have explained step by step solution Hope this will really gonna help you !!!!!…

Q: Remaining Time: 55 minutes, 50 seconds. ¥ Question Completion Status: A Moving to another question…

A: The half- cell reactions for the given cell reaction can be written as follows:

Q: How long will it take for the concentration of A to decrease from 0.850 M to 0.477 for the reaction…

Q: I'm not sure how to do this

A: From the initial equilibrium concentrations given, we can find the equilibrium constant of the…

Q: 11. If molar concentrations are BrC g) 1.5 x 10-3M 1.5 x 10-2M Br2(9) 1.5 x 10-2M Cl210) What is Q?…

A: In order to calculate Q first, the reaction quotient expression is determined.

Q: At a certain temperature, K 8.40 x 10- for the reaction FESCN2*(aq) 2 Fe*(aq) + SCN (aq) +2+…

A: The question is based on the concept of chemical equilibrium. we have to calculate concentration of…

Q: Write the Kc Expression for the Lab’s Reaction Background: The purpose of this lab is to…

A: At the equilibrium the concentration of reactant and product remain constant over time. It is…

Q: After completing part II of the experiment, a student uses her calibration curve to find that the…

A: We would first write a reaction between Fe3+ and SCN- to form product [FeNCS2+] , then we would…

Q: After adding the water how was the equilibrium affected? If a compound was removed how? Explain…

A: At equilibrium , the rate of forward and that of backward reactions for a reversible reaction will…

Q: When solid BaF, is added to pure water at 25 ° C, the salt dissolves until the concentration of Ba2+…

A: The dissociation of BaF2 is , BaF2s↔Ba2+aq + 2F-aq The solubility of Ba2+ is…

Q: In a reaction mixture 20.0mL of 0.010M KI, 10.0mL of 0.040M KBrO3, 10.0mL of 0.040M Na2S2O3, and…

A: From the total volume , we can calculate the following concentrations

Q: 4. During the synthesis of Nickel, Ammonia, and Chloride coordination compound, what would happen to…

A: To explain what happens to the product yield if the synthesis was done at 100 oC instead of 60 oC.

Q: So I am given the reaction Fe3++SCN-→←Fe(SCN)2+. [Fe3+]i = 0.0018 M , and [Fe(SCN)2+]eq = 3.206 x…

A: For the value of [Fe3+]eq we dont need the value of [SCN-]i=0.0020 M [SCN-]i=0.0020 M will be…

Q: Hydroxyapatite, Cao(PO,)(OH)2, has a solubility constant of Ksp = 2.34 x 10, and dissociates…

A: Solution- solubility equilibrium -Ca10(PO4)6(OH)2(s)→10Ca2++6PO43-(aq)+2OH-(aq)Solubility…

Q: 0.200 M Fe(NO.). (mL) 0.0020 M SCN- (mL) H,O (mL) Beaker 4.0 41.0 1 5.0 3.0 42.0 2 5.0 2.0 43.0 3…

A: The molarity is one of the form of concentration. It is defined as the number of moles of solute…

Q: A chemical equilibrium can be established only if none of the products is allowed to escape out or…

A: Given that , A chemical equilibrium can be established only if none of the products is allowed to…

Q: 47. Consider the reaction: MISSED THIS? Read Section 16.7; Watch KCV 16.7, WE 16.7 NH,HS(s) = NH3(8)…

A: Given equilibrium is NH4HS(s) <----> NH3(g) + H2S(g) Equilibrium constant , Kc = 8.5×10-3 A…

Q: When 25.0 mL of a 4.68×10 M magnesium chloride solution is combined with 15.0 mL of a 8.20×10 M…

A: Solubility product quotient, Q is the product of the concentrations of the products, each raised to…

Q: Assume we are to tackle a complex aqueous equilibria problem using the systematic process we learned…

A: Equilibrium reaction: chemical equilibrium, condition in the course of a reversible chemical…

Q: How long will it take for the concentration of A to decrease from 0.850 M to 0.231 for the reaction…

A: Intial concentration of A = a0 = 0.850 M final concentration of A = a = 0.231 M Rate constant = k…

Q: QUESTION 9 From the results in the ICE chart below, calculate the equilibrium constant, Ke. Fe3+…

A: We have given that reaction Fe3+ + SCN- ⇌…

Q: metimes equilibria for complex ions are described in terms of dissociation constants, Kd. For the…

A: When a complex ion is formed from its constituent metal ion and ligands, the equilibrium constant…

Q: Consider the reaction A→ B. The initial [A] is 0.10M. After 1.0 hour, 50% of A has reacted. What…

Q: nto the expression for the equilibrium constant and solve f [N2][H21 (0.400 - x)(1.00 - 3x)³ [NH? =…

A: Interpretation- In the given question find the value of x - Concept- To find the value of this…

Q: The formation of the silver(I) ammine complex ion is a reversible reaction that is allowed to reach…

A: The chemical equilibrium is a state of a reaction in which the rate of forward reaction is same as…

Q: 1. Which of the following correctly describes the equilibrium constant for the gas-phase reaction…

Q: 27. For PbCl2 (Ksp = 2.4 x 10-), will a precipitate of PbCl, form when 0.10 L of 3.0 x 10 M Pb(NOa)a…

A: Given that, 0.10 L of 3.0×10-2 M Pb(NO3)2 is added to 400 ml of 9.0×10-2 M NaCl. Ksp of PbCl2 =…

Q: After completing part II of the experiment, a student uses her calibration curve to find that the…

Question

A student performed the "clock" reaction described in this experiment. She set up
Reaction Mixture 4 by mixing 10 mL 0.010 M KI, 10 mL 0.001 M Na,S,O, 10 mL 0.040
M KBRO, and 20 mL 0.10 M HCl using the procedure given. It took exactly 21 seconds
for the color to turn blue.
1. What caused the solution to turn blue? And how will you take advantage of this color
change to measure rates?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Table 11.7 (data) Color Change Relative to Reference Test performed Add Fe(NO3)3 Add KSCN Add AgNO 3 Cool Solution
Please write a paragraph of the complete method in your own words using the two images attached below
7. answer correctly or I will leave negative remarks.
Can you help me calculate Keq from the reaction Cu2+ + 4NH3 = [Cu(NH3)4]2+ knowing that the initial concentration of Cu2+ is 0.0333M and the initial concentration of NH3 is 0.33M. Finally we also know that the final concentration of Cu2+ is 2.6x10^(-10)M.
How long will it take for the concentration of A to decrease from 0.850 M to 0.271 for the reaction A → Products? (k = 0.0882 M⁻¹s⁻¹)
KINETICS AND EQUILIBRIUM Writing the concentration equilibrium expression for a... Write the concentration equilibrium constant expression for this reaction. 2 Cu²+ (aq) +41 (aq) →2 Cul(s) + I₂(aq) 0 010 0/5
A student prepares an FeSCN2+ experimental sample by mixing:4.0 mL of 0.0025 M Fe(NO 3) 32.0 mL of 0.0025 M KSCN8.0 mL of 0.10 M HNO 3Based on a standard curve, it was determined that the concentration of FeSCN 2+ present in thesample at equilibrium was 2.52 × 10 -5 M. Based on this data, calculate the equilibrium constant forthe reaction of Fe 3+ with SCN– .
47. Consider the reaction: MISSED THIS? Read Section 16.7; Watch KCV 16.7, IWE 16.7 NH4HS(s) NH3(g) + H₂S(8) At a certain temperature, Ke = 8.5 x 10-³. A reaction mixture at this temperature containing solid NH,HS has [NH3] = 0.166 M and [H₂S] = 0.166 M. Will more of the solid form or will some of the existing solid decompose as equilibrium is reached?
In this experiment, Ag+(aq) reacts with SCN- (aq) to form a precipitate. Adding AgNO3 (aq), which contains Ag+, will essentially increase, not change, or decrease the concentration of SCN- and drive the equilibrium reaction to the right, left or neither way When this happens, the value of Kc will be higher, lower or stay constant
For the reaction 2 NH3 = 3H₂ + N₂ The equilibrium concentrations were found to be [NH3]=0.250 M [H2]=0.450 M [N2]=0.800 M. What is the equilibrium constant for this reaction?
5. A reaction is initiated by mixing suflur dioxide and oxygen. This reaction forms sulfur trioxide. 2 SO2 + O2 5 2 SO3 if we start the reaction with 0.100 M SO2 and 0.150 M O2, and allow the reaction to run until the concentration of SO3 is 0.020 M, what is the concentration of O2 and SO3 in the mixture at that point?
Below is the concentration versus time graph for the reaction system. The graph was produced using secondary data at a temperature of 22 °C. 12.0- 10.0- 8.0- concentration (x10-2 M) 6.0 NO₂ 4.0+ 2.0+ 0.0 time (arbitrary units) i. Time t is shown on the graph above. Calculate the equilibrium constant at time f₁. ii. At time to the volume of the system was halved, keeping the temperature at 22 °C. Continue the graph to show how this change would affect the reaction system and how the system would respond to this change until equilibrium is restored. 4₁ 4₂