Explain, by considering how changes in [H+] will cause Reaction 3 to shift, why the reagents in Step 2 and 3 caused the solution to change color.  Step 1: dilute methyl violet is added to water in which  HMV (aq) --> H+(aq)+MV-(aq)           HMV appears yellow green; MV appears violet Step 2: add 2M HCl which turns solution greenish Step 3: add NaCl which turns solution violet

Q: For each of the following equilibria, predict the direction the reaction will shift upon addition of…

A: Given that,

Q: Can you please set up the ice table?

A: The given buffer solution consists of a weak base,C6H5NH2 and its salt ,C6H5NH3Cl.C6H5NH2 is a weak…

Q: What you expect to observe on mixing 6M NaOH with HCl. Will there be a color? Will bubbles form?…

A: Sodium hydroxide (NaOH) is a strong base and hydrochloric acid (HCl) is a strong acid. When an acid…

Q: The value of K for methylamine, CH3NH₂, is 4.20x10-4. Write the equation for the reaction that goes…

A: Given, Kb(for methyl amine ) = 4.20×10-4

Q: 8. A buffer consists of a mixture of a weak acid and its conjugate base but the pH 4.00 buffer…

A: above molecule contain both acid as well as salt . so it can act as buffer. if we add hCl to the…

Q: During this course you will use a basteriallysis buffer One of the ingredients of his buffer as…

A: Triton X-100, also known as octylphenol ethoxylate or polyethylene glycol octylphenyl ether, is a…

Q: Two-part question, thank you!   Using the appropriate Ksp values, find the concentration of K+ ions…

A: The balanced equation for the given reaction would be,

Q: Co(H2O)62+(aq) + 4 Cl–(aq)⇄CoCl42–(aq) + 6 H2O What happens to the equilibrium using Le Chateliers…

A: Given Reaction Co(H2O)6(aq.) + 4 Cl– (aq.)⇄CoCl42–(aq.) + 6 H2O What happens to equilibrium  using…

Q: Which of the following mixtures has the smallest buffer capacity towards the addition of a base?…

A: Answer:Buffer solution is a type of solution that resists the change in its pH on adding small…

Q: John made a buffer solution A at pH =8, and pKa = 9.

A: Given: Buffer solution A have pH= 8 pKa = 9 To determine: The buffer solution A have more buffer…

Q: The following reactions all have K > 1. 1) HF (aq) + C6H5O- (aq) F- (aq) + C6H5OH (aq) 2) CH3COOH…

A: Given: Some Reactions are given whose value of Equilibrium constant is less than one and some…

Q: trace acid + pH = 5 %3D major product

A: This is the shiff base formation reaction .

Q: At which of the following pH's will a buffer made of bypobromite, a weak base, and hypobromous acid…

A: Given solution is an acidic buffer as it contains weak acid and it's conjugate base.  Ka = 2.3 x…

Q: PLEASE HELP ME ANSWER QUESTION 5) A student starts a titration without phenolphthalein in the…

A: This question belongs to titration.

Q: HC;H;O2(aq) + H;0(1) =H;0*(aq) + C_H¿Oz (aq) K = 1.8 x 10* at 25 °C If a solution initially contains…

A:

Q: A 15.00 mL sample of 0.355 M H3PO4 (Ka,1 7.52 x 10-3, Ka,2 6.23 x 10-8, Ka,3 2.1 x 10-13) is…

A: (a) For first equivalent point:                                 H3PO4       +        NaOH  ----->…

Q: What is the equilibrium concentration of H3O+ in 0.1564 M HNO2 ? See reaction below HNO2 + H2O ↔…

A:

Q: An analytical chemist is titrating 90.6 mL of a 0.2800 M solution of diethylamine ((C₂H₂)₂NH) with a…

A:

Q: A 0.13 M solution of a weak acid HA dissociates such that 95.2% of the weak acid remains intact…

A: A weak acid ionizes partially to produce the H+ ions in an aqueous solution.

Q: In the presence of excess OH", the Zn2+ (aq) ion forms a hydroxide complex ion, Zn(OH)42. Calculate…

A: In this question, we need to calculate the concentration of free Zn2+ ion. This can solve using the…

Q: The Ka for this HNO2 solution is 7.1 x 104. Based on your ICE table and definition of Ka, set up the…

A: Given the reaction as:                                        HNO2(aq)   +  H2O (l)  <=>…

Q: 1.A chemist carries out a titration of 0.10M HCN with 0.10M NaOH. Which of the following indicators…

A: An acid-base titration is the titration used to determine the unknown acid or base concentration by…

Q: 7. What is the value of the equilibrium constant for the following equilibrium? HCECH + NaOH HCC: Na…

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

Q: Calculate the ratio of pyridine (C3H,N) to it's conjugate acid, the Pyridinium ion (C3H,NH"), CHN in…

A:

Q: 11.An acid-base equilibrium system is created by dissolving 0.20mol CH3COOH in water and diluting…

A:

Q: A solution contains 0.250 M HA (Ka = 2.4 x 10-5) and 0.30 M NaA. What type of solution results after…

A: Mixing a strong acid with its salt in suitable proportion can a form  an acidic buffer. Similarly a…

Q: MISSED THIS? Read Section 16.8 (Pages 701-710); Watch KCV 16.8. WE 16.12 Consider the following…

A:

Q: The K, for acetic acid (CH,COOH) is 1.737 × 10-5. What is the pK, for this acid? pKa = Use the…

A: We know that, pKa is the negative logarithm of Ka. i.e.                     pKa= -logKa We have, Ka…

Q: A student needs to prepare a buffer made from HCO3 and with pH 6.690. If Ka for H2CO3 is 4.20 x…

A: Ka of H2CO3 = 4.2010-7pH = 6.690

Q: Which of the following is true of a buffer solution that contains equivalent amounts of acid and…

A: buffer solution that contains equivalent amounts of acid and conjugate base means [Conjugate base ]…

Q: What you expect to observe on mixing 6M NH3 with HCl. Will there be a color? Will bubbles form? Will…

A: Given: Mixing of 6M ammonia with hydrogen chloride solution To find: colour, bubbles formation,…

Q: If you needed to perform a reaction in a controlled pH environment that was fairly basic, you might…

A: A buffer is a solution which resist any change in pH on adding a small amount of acid or base . it…