Determine the pH change when 0.119 mol NaOH is added to 1.00 L of a buffer solution that is 0.438 M in HNO2 and 0.236 M in NO2. pH before addition = pH change = %3D pH after addition %3D

Q: A solution is made with 554 ml of 8.21 M HX solution and 549 mL of 6.06 M Nax solution and the pH at...

A:

Q: 2. Balance the following redox equations by the ion-electron half-reaction method: (a) (acid soluti...

A: We will step by step balance redox reactions.

Q: Determine the rate law for the reaction A + B → C + D given the following experiment data. Initial T...

A: To find the rate law, first find order of reaction with respect to each reactant.

Q: Show your work in details: Cu2+ unknown concentration can be analyzed by electrogravitic analysis ac...

A: Mass of the electrode before starting the reaction  = 0.5559g Mass of the electrode after the reacti...

Q: 3. This H spectrum exhibits resonances at the following chemical shifts, and with these integrated a...

A: This Question is based upon NMR Spectroscopy.

Q: Give the empirical formula of each of the following compounds if a sample contains the following qua...

A: The emperical formula can be calculated as follows

Q: The porosity of the PAGE gel is determined by the ratio of acrylamide and the amount of. (TEMED, bis...

A: We have to tell the porosity of the PAGE gel is determined by the ratio of acrylamide and the amount...

Q: 9.49 AHn = 31.3 kJ/mol for acetone. If 1.40 kg of water were vaporized to steam in a boiler, how muc...

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Q: 1. Quantum leap is the phase where electrons tend to jump from one orbit to another. 2. Ther...

A: * Electron is considered as quantum in quantum chemistry.

Q: H() + 3 O2(g) → 2 CO2(g) +4 H 452.8 kJ/mol ch heat (kJ) is evolved when 3 pl (CH3OH) with a density ...

A: Volume of methanol = 35 mL Density = 0.792 g/mL Mass = Volume × density    = 35 × 0.792 = 27.72 g Mo...

Q: Monochromatic light is light of one color, one frequency. If a monochromatic light beam is increased...

A: Answer: This question is based on the basic understanding of wave nature of matter where we have to ...

Q: How to identify base and adjacent base and acid and adjacent acide in chemical reaction and other si...

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Q: An aqueous solution contains 0.22 M hydrocyanic acid. One Liter of this solution could be converted ...

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The buffe...

Q: certain compound has an empirical formula of C2H6OSi and a molecular weight of 593.236 amu.  Determi...

A: Emperical formula is the simplest ratio of each constituent elements in molecular formula.  Molecula...

Q: 9.63 Reactions of hydrocarbons are often studied in the petro- leum industry. One example is 2 C;Hg(...

A: Given reaction: 2C3H8(g) → C6H6(l) + 5H2(g) ∆H∘ = 698 kJ The volume of propane = 35 L The temperatur...

Q: Consider the reaction: 2NaCl + CACO3 Na2CO3 + CaCl2 Write the equilibrium expression for this reacti...

A: Here we have to consider the states of reactant and product whether they are solid , liquid , gas , ...

Q: 9. Why do we need to test the washings with AGNO3? 10. What is done in an ignition process?

A:

Q: Can the addition of HOCI to an alkene produce a mixture of stereoisomers? Can the addition of Br_2 t...

A: Stereoisomers are the isomers that have different orientation in the space.  Alkene that contains c=...

Q: write T if underlined word is correct, if false, write the correct answer 1. Pyrolytic Carbon is...

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Q: What reaction observed? Q = K forward Q> K neither Q < K reverse

A: -&gt;Q is reaction coefficient and K is equilibrium constant. -&gt;It means that Q is ratio of produ...

Q: A solution of HCIO, was standardized by dissolving 0.3745 g of primary-standard-grade HgO in a solu-...

A: We will first find moles of OH-, then calculate concentration of HClO4 to find molarity.

Q: (a) Calculate the energy difference between the two spin states of 'H and of 13C in a magnetic field...

A: The energy difference between spin states are calculated using the equation  ∆E=γ Boh2π Bo is the ap...

Q: Assuming ideal solution behavior, what is the molar mass of a protein if a solution of 0.02 g of the...

A: given :-  mass of protein = 0.02 g  volume = 25.0 mL  osmotic pressure = 0.56 torr  temperature = 25...

Q: Template Assisted Crystallization (TAC) is a a commercial softening alternative. Which of the follow...

A: Template assisted crystallization is a commercial softening alternative which involves use of atmosp...

Q: 15. Choose the pair of photoelectron spectra that will be identical.   A the PES of 37Cl and 35Cl...

A: Correct answer  B . The PES of Ne and F-  (Same  total electron)

Q: Which one of the folllowing samples contains the most atoms? Hint. Think about definitions:I am look...

A: Which one of the following samples contains the most atoms? 

Q: PLEASE HELP WITH THIS QUESTION, PLEASE PROVIDE CLEAR HANDWRITING AND PLEASE ALSO PROVIDE EXPLANATION...

A: The structure of the above compounds are given below

Q: Draw a possible forward synthesis to form the following compounds using MeOH, ETOH, NaCN and benzene...

A: To synthesize the following molecule , retrosynthetic approach is very essential . After retro synth...

Q: 9.54 The phase change between graphite and diamond is dif- ficult to observe directly. Both substanc...

A: Given- C(graphite)+O2-&gt;CO2.          ∆H°=-393.51kJ  C(dimond)+O2-&gt;CO2.             ∆H°=-395.94...

Q: What is the pH of a 0.450 M solution of Ca(NO₂)₂ (Ka of HNO₂ is 4.5 × 10⁻⁴)?

A:

Q: how aas work?

A: Since you have asked multiple question, we will solve the first question for you. If you want any sp...

Q: Which of the properties below apply to the polymer that forms when the following monomers react? + N...

A: Condensation polymer is when polymerization occurs and water molecules is Removed during the reactio...

Q: Set up the following reactions. Each reaction has to be balanced. a) Ethane reacts with Oxygen in a ...

A:

Q: Он H H OH H-C- CH3 H он H3C- С—н H ČH3 H I-

A:

Q: Give the number of protons, neutrons, and electrons for 5°C0 protons neutrons electrons

A: Given, Element : Cobalt (59Co) Mass number of Co = 59 Atomic number of Co = 27 Number of protons = ?...

Q: Match all the indicated areas/points of the titration curve provided to their descriptions related t...

A:

Q: What are the predicted products for the reaction shown? N' H3O* II

A: Let us discuss both the reactions. 

Q: PROBLEM 3 Consider a Si sample under equilibrium conditions, doped with Boron to a concentration 101...

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Q: nuclear equation for U235 that produces Xe144 and Sr90

A: In this question, we have to give nuclear equation for U235 that produces Xe144 and Sr90 :

Q: Ка(НС-Нз О2) %3D 1.8 х 10 5 1. 0.10 M acetic acid/0.30 M sodium acetate pH : 2. 0.30 M acetic acid/0...

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Q: In the iron (II)-silver ion system performed in the experiment, all of the following successfully co...

A: Here we have to predict the test given which doesn't not occur when the system contains Fe^+2 and Ag...

Q: Question 6 of 20 What is the molality of ions in a 0.323 m solution of Na2SO4 assuming the compound ...

A: Molality of Na2SO4 solution = 0.323 m  * Assume complete dissociation of compound take place. Molali...

Q: Acetyleugenol: Put in the molecular formula of the ions responsible for peaks at 147 and 165. Use th...

A: Mass spectroscopy is used to mass by charge ratio. 

Q: Vanadyl trichloride (VOCI3) is a liquid that is used as a catalyst in the manufacturing of batteries...

A: The mass of vanadyl trichloride is = 15.73 g The heat of vaporization of vanadyl trichloride is = 36...

Q: What is the bond order of the SO2 in the image below?

A: Bond order: When a molecule has resonance structure, the bond order tends to be average of the reson...

Q: Use the half-reaction method to balance the redox reaction below.  Ce4+ + Sn2+ → Ce+ + Sn4+

A: The half-reaction method is a method to balance redox reactions. It involves breaking the overall eq...

Q: Find the oxidation number for each element in the following substances. N2O 1. N = 2. O =

A: given :- chemical formula = N2O  to assign :- oxidation no.of each element in the given molecule 

Q: DQuestion 3 How many non-bonded electron pairs are in the Lewis structure below? 02 06 08 04

A: 4 non-bonded pairs are in the Lewis structure of CO2.

Q: Draw the structures of 5 structural and geometric isomers of dienes with formula C5H8.

A: All the diene compounds are drawn below 

Q: For the mechanism provided below: a. Write the balanced equation for the overall reaction. b. Use th...

A: We will write overall equation and then predict rate law.

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.