Q: An equilibrium mixture has 0.777 mol of nitric oxide and 0.640 mol of chlorine in a rigid 0.95-L…
A: Given equilibrium is 2 NO (g) + Cl2 (g) <=> 2 NOCl (g) The equilibrium mixture has 0.777 mol…
Q: How many moles of ASC13 are present in 460.0 g of a 41.0 ppm AsCl3 solution?
A: The question is based on mole concept. we have to calculate moles present in given quantity of…
Q: Standard solution : 0.201 grams of acetylsalicylic acid was combined with 10 mL of 0.5 M NaOH, then…
A: A) To determine the concentration of acetylsalicylic acid in the 100.00 mL volumetric flask, we…
Q: A tree killed by being buried under volcanic ash was found to have a ratio of carbon-14 atoms to…
A:
Q: For the aqueous ; [HgI4]¯ complex K₁= 6.76 × 10²⁹ Suppose equal volumes of 0.0016M Hg(NO3), solution…
A: We have to calculate equilibrium molarity of Hg2+
Q: (a) (c) CH3 CH3 CH3CH₂CC=CCHCH3 CH3 (b) CH3 CH3CH₂CC=CCH₂CH₂CH3 CH3 CH3 (d) CH₂C=CCHCH₂CH₂CH3
A:
Q: why is benzoic acid insoluble in pure water but soluble in NaOH solution
A: Benzoic acid is insoluble in pure water due to its hydrophobic (water-repelling) nature. The…
Q: What is the percent ionization of H₂NNH₂ in a solution with a concentration of a 0.590 M? (Kb = 1.3…
A: Answer:- This question is answered by using the simple concept of ionisation of weak base and…
Q: What is the pH of a solution in which 15 mL of 0.38 M NaOH is added to 25 mL of 0.38 M HCl? pH =
A: Given -> Molarity of NaOH= M1 = 0.38 M Volume of NaOH= V1 = 15 ml Molarity of HCl = M2 = 0.38 M…
Q: Curved arrows are used to illustrate the flow of electrons. Follow the arrows to predict the…
A: When an ether reacts with HCl, an alcohol and an alkyl chloride will be formed.
Q: ich statement is false? vo 2 A k₂k₂[A]² k_₁+k₂ k.1 If the first step is irreversible and the second…
A: Chemical equilibrium is a condition in the course of a reversible chemical reaction in which no net…
Q: Be sure to answer all parts. Name the following using the IUPAC Nomenclature System: a)…
A: This question belong to Nomenclature of organic Compounds.
Q: A solution is made by dissolving 25.1 g of Ba(NO₂)₂ in 500.0 mL of water. Using Kb(NO₂⁻) = 2.2 ×…
A:
Q: The reaction of NOBr(g) to form NO(g) and Br₂(g) is second order: 2NOBr(g) → 2NO(g) + Br₂(g) The…
A: Given: The rate constant (k) is 0.556 L mol-1 s-1 or 0.556 M-1 s-1. The initial concentration of…
Q: Answer the following questions based on the phase diagram (not to scale!) for hydrogen, H₂, and on…
A:
Q: Calculate the molar solubility of yttrium iodate Y(I03)3 Ksp=1.12x10^-10 when dissolved in a 0.0500M…
A: Ksp for Y(IO3)3 = 1.12 x 10-12 [Y(NO3)3] = 0.0500 M [Y+3] = 0.0500 M
Q: How many moles of S are present in 5 moles of Al2S3 ? moles S Moles S Enter
A: Answer: This question is based on stoichiometric calculation where moles of Al2S3 needs to be…
Q: Suppose the formation of iodine proceeds by the following mechanism: step elementary reaction 1…
A: Overall reaction can be determined by adding all the steps of the mechanism of a reaction. Rate law…
Q: Find expressions for α and κ for a solid obeying the following equation of state: V = nc1 + nc2P +…
A: To find the expressions for α and κ, we need to start with the definitions of the isothermal…
Q: Predict the major product of the following reaction: or (a) os x O OH OH oe 0: RCO₂H ?
A: This reaction is an example of Baeyer- Villiger rearrangement In this reaction, ketones in the…
Q: research investigation was performed using Alka-Seltzer and water. During the investigation,…
A: C is the correct answer. The law of conservation of mass states that the total mass of the reactants…
Q: There are many types of "sugars", just like there are many types of "salts". This is a term we…
A: Given, Chemical formula for sucrose: C12H22O11 molar mass of sucrose (C12H22O11) = ? g/mol Note:…
Q: Question 1: Complete a reaction mechanism for these Diels-Alders reactions - Y X + OH
A: Diels - Alder reaction is atype of pericyclic reaction in which a diene react with dienophile to…
Q: Give detailed Solution with explanation
A: R/S nomenclature is given to chiral center to assign the configuration. R means the priority…
Q: Complete the following table. Be sure each of your answer entries has the correct number of…
A:
Q: How many ions of S are present in 1.0 mole of Al2S3? [?]×10 Sions X
A:
Q: Calculate the amount of heat needed to melt 130. g of solid acetic acid (HCH3CO₂) and bring it to a…
A: We have to calculate the heat needed to melt 130 g acetic acid and bring it to temperature 64.3°C
Q: what is the rate constant at 447 ˚C for the reaction below is the rate constant is 1.30 M-1 s-1 at…
A:
Q: In part 1 of this lab, you will be calculating A-H by conducting constant-pressure calorimetry…
A: To calculate the enthalpy change we use the formula: Q = m x Cs x ∆T m = mass of the sample Cs =…
Q: Ph 5. Use this general reaction scheme to provide either the products or reagents for each reaction…
A: This question belong to reaction mechanism of organic compounds. LDA and NaH both are Strong base…
Q: AH 390ledne non as to pulloonitul bonapig and not hudzoup galwollot di 40 17. Calculate the heat…
A: Answer-17 Condensation is a process in which substance changes its physical state form vapor to…
Q: How many moles of Al are present in 1 mole of Al₂S3 ? moles Al
A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Thus,
Q: Part 3: Preparation of a Solution of Oxalic Acid Hydrate at Unknown Concentration Mass of…
A:
Q: The surface area, surface roughness, and surface chemistry may have a significant impact on the flow…
A: The concept behind this answer is that the surface properties of a powder, including surface area,…
Q: Write the equation showing the: Reaction of butanol and 2-heptanol
A: The reaction of butanol with 2-heptanol. The both butanol and 2-heptanol are alcohols and we know…
Q: 4. . Consider the three compounds below. Rank these in terms of expected boiling point, and write a…
A: The question is based on the concept of boiling point . we have to arrange the given compound in…
Q: EX7 The first-order bidirectional reaction is given: k₁ k.1 with rate constantsk₁=5 x 10-²S-¹ and…
A:
Q: Each sketch below shows three objects with an electric charge. In each case, decide whether there is…
A: By considering charge and distance we can figure out the direction of net force.
Q: benzool on TM on toomged noslond one HMI odw smyst Tomusnogmas gnillod on ai sed W ownerstmal…
A:
Q: 3. Which of the following should produce the lowest pH when dissolved in water (assuming equal…
A: pH is a negative logarithmic of concentration of hydrogen ion. pH scale gives idea about the…
Q: A 8.58 g sample of benzoic acid was dissolved in water to give 76.9 mL of solution. This solution…
A: Answer: pH = 8.59
Q: Suppose 1.50 g of sodium bicarbonate (NaHCO3) and 1.50 g citric acid (H3C6H5O7) reacted to produce…
A: According to the question we have, The mass of the sodium bicarbonate (NaHCO3) is given by = 1.50…
Q: ов єHugBr (100 molk) E+20, 07
A:
Q: Pure aspirin has a melting point of 135-136 °C. Before the melting point was determined - if the…
A: Melting point is the temperature at which a substance changes from a solid to a liquid phase at…
Q: O₂N NH NO₂
A: The number of NMR signals is equal to the number of chemically non-equivalent protons and carbons…
Q: Circle the strongest nucleophile. H H Br Circle the alkyl halide that will react the fastest with…
A: Nucleophilicity order Nucleophilicity increases in increasing basicity. Nucleophilicity increases…
Q: For the following reaction H₂(g) + 1₂(g) → 2HI(g) AH = -10.64 kJ/mol and AS° = 21.48 J/ mol K. A…
A:
Q: Calculate q, w, and ∆U for the reversible isothermal expansion at 500 K of 3.0 mole for a perfect…
A: The work done (w) during a reversible isothermal expansion of a perfect gas is expressed as shown…
Q: a. What is the pH of a buffer solution that is 0.28 M NH3 and 0.28 M NH4+? K for NH3 is 1.8 × 10-5…
A: Given : a. Concentration of NH3 = 0.28 M Concentration of NH4+ = 0.28 M Kb of NH3 = 1.8 x 10-5…
Q: What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse…
A: We have to calculate the minimum pressure needed to obtain water by reverse osmosis
Calculate [Ag+], [Ac-], and [HAc] in a saturated silver acetate solution of pH = 4.24. Ksp(AgAc) = 4.010-3 and pKHAc = 4.75
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- Choose the acid below that would make the most effective buffer for a solution to maintain a pH of 5.00 (aq., 25 oC), given a 0.500 M concentration of it and its conjugate salt. a) propionic acid, Ka = 1.34 x 10–5 b) HN3, Ka = 1.90 x 10–5 c) butanoic acid, Ka = 1.52 x 10–5 d) NH4Cl, Ka = 5.56 x 10–10 e) benzoic acid, Ka = 6.30 x 10–5A buffer solution contains 0.40 mol of arsenous acid (H3AsO3) and 0.87 mol of sodium dihydrogen arsenite (NaH2AsO3) in 7.30 L.The Ka of arsenous acid (H3AsO3) is Ka = 5.1e-10. (a) What is the pH of this buffer?pH = (b) What is the pH of the buffer after the addition of 0.35 mol of NaOH? (assume no volume change)pH =The reaction Cu(s) + HNO3(ag) Cu(NOsh(ag) + 2 NO:) +2 H;O() is used to dissolve the copper metal Ifa 1.000 g sample of copper is used, and instructions say to use four times as much acid as the required amount, how many mL (to the nearest mL) of 15.0 M nitric acid would be used in the procedure for this sample? Select one: O a 10mL Ob 17ml O c.4mL O d 25ml O e 5mL
- A buffer solution contains 0.40 mol of arsenous acid (H3AsO3) and 0.87 mol of sodium dihydrogen arsenite (NaH2AsO3) in 7.30 L.The Ka of arsenous acid (H3AsO3) is Ka = 5.1e-10.(a) What is the pH of this buffer?pH = (b) What is the pH of the buffer after the addition of 0.35 mol of NaOH? (assume no volume change)pH = (c) What is the pH of the original buffer after the addition of 0.44 mol of HI? (assume no volume change)pH =The solubility product, Ksp, for Fe(OH)3 is 1.6 × 10–39. What is the solubility of Fe(OH)3 in a buffer solution with pH = 10, in moles per litre? A) 1.1 × 10–9 mol.L–1 B) 4.0 × 10–23 mol.L–1 C) 8.8 × 10–11 mol.L–1 D) 1.6 × 10–27 mol.L–14. If 283.0 mg of AgBr is completely dissolved in 143.0 mL of 0.2 M NH3, what is the equilibrium concentration of Ag* (aq) in the final solution? K[Ag(NH3)2] = 1.7E7 Include at least 3 significant figures in your answer. M Grade This Exercise 5. The acid ionization constant of Fe(H₂O)2+ (aq) is 3E-6. Compute the pH of a 0.11 M aqueous solution of Fe(NO3)2- Include at least 3 significant figures in your answer. D Grade This Exercise 6. Compute the solubility of Mg(OH)2 in a buffer solution at pH=10.71. The solubility product of magnesium hydroxide is 1.2E-11 Include at least 3 significant figures in your answer. D M
- The solubility products of Fe(OH)3 and Ni(OH)2 are about 10-36 and 6 × 10-18, respectively. Find the approximate pH range suitable for the separation of Fe3+ and Ni2+by precipitation of Fe(OH)3 from a solution initially 0.01 M in each ion, as follows: (a) Calculate the lowest pH at which all but 0.1% of the Fe3+ will be precipitated as Fe(OH)3; (b) calculate the highest pH possible without precipitation of Ni(OH)2.Given the equation: Ag+(aq)+2NH3(aq)⟶[Ag(NH3)2]+(aq) ?f=2.00×10^7 determine the concentration of NH3(aq) that is required to dissolve 295 mg of AgCl(s) in 100.0 mL of solution. The ?sp of AgCl is 1.77×10^−10. I've worked this through several times, but I am just not coming up with the right answer! Thanks :)The solubility of magnesium hydroxide in pure water is 1.3 x 10–4 mol/L. (a) Calculate the Ksp of Mg(OH)2; (b) What isthe pH of saturated Mg(OH)2solution at 25oC? (c) Calculate the solubility of Mg(OH)2 in a solution buffered at pH 9.0?
- Calculate the ratio of pyridine (C;H,N) to it's conjugate acid, the pyridinium ion (C3H,NH"), GHN] CH,NH in a buffer made of pyridine and the pridinium ion when the pH of that buffer solution is 4.94. K for the pyridinium ion is 5.60 x 10A buffer solution contains 0.89 mol of hypoiodous acid (HIO) and 0.57 mol of sodium hypoiodite (NaIO) in 3.40 L.The Ka of hypoiodous acid (HIO) is Ka = 2.3e-11.(a) What is the pH of this buffer?pH = (b) What is the pH of the buffer after the addition of 0.17 mol of NaOH? (assume no volume change)pH = (c) What is the pH of the original buffer after the addition of 0.24 mol of HI? (assume no volume change)pH =A buffer solution contains 0.81 mol of hypoiodous acid (HIO) and 0.40 mol of sodium hypoiodite (NaIO) in 3.20 L.The Ka of hypoiodous acid (HIO) is Ka = 2.3e-11.(a) What is the pH of this buffer?pH = (b) What is the pH of the buffer after the addition of 0.60 mol of NaOH? (assume no volume change)pH = (c) What is the pH of the original buffer after the addition of 0.16 mol of HI? (assume no volume change)