Bases are often bitter and slippery, like cleansing soap. Cowboys strength coach Markus Paul dies at 54, Ken Jennings called out for past insensitive tweets, Girl that was handcuffed by police at 11 is dead at 14, Crucial new data on the efficacy of cloth masks, How sleep habits may cut your risk of heart failure: Study, CDC to shorten quarantine for those exposed to virus, New stimulus checks may not boost economy, 'Saved By the Bell' star explains famous caffeine pill scene, History hasn't been kind to fighters on comeback trail, Obama crushed by Colbert in 'waste basket-ball', Women raise voices amid increase in domestic violence. So B is incorrect. A. H2CrO4 B. Cr(OH)3 C. Cr(OH)2 D. Cr. Expert Answer 100% (10 ratings) Previous question Next question Transcribed Image Text from this Question. Which stage of ionization of H3PO4 produces the most ions in solution? When a solution of hydrochloric acid, HCL, reacts with zinc, which of the following substances is a reactant? Which of the following compounds has the most acidic nature? Hydroxide = greater basic, Hydronium = greater acidic 4. impartial (pH of seven) The pH scale is from a million-14. Assume it dissolves in water. Because you have equimolar concentrations of the acid and its conjugate base , the pH will equal the pKa of the acid: n. D) is the salt of a weak acid and strong base , so the pH will be approx 10.0. 4. Which of the following substances can act as an Arrhenius base, a Bronsted Lowry Base, and a Lewis Base? Even if you thought it might rip off that proton to make NaH, that's a strong base, not an acid, and carboxylic acid groups do not react that way because the hydroxy group is tough to break apart and pull off to begin with. 7 is impartial. Therefore, solution 'b' is most acidic in nature. Which of the following will be present in an aqueous solution of H2SO4? You can effectively eliminate the sodium on B and D, because it will just stay in the aqueous layer while the organics interact. In the following reaction, which substance acts a Bronsted Lowry base? In phenol, the electron withdrawing phenyl ring polarizes the O - H bond thereby facilitating the release of H as H+ and hence phenol is most acidic. It'll cancel out and might even form NaOH, which is a base and will react with any remaining acetic acid. Out of the five given solutions, 0.0100 M in HF and 0.0100 M in KBr is most acidic. The ranking , from lowest to highest pH is: a million. Acidic. think of of issues which includes lemons and oranges. Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Which of the following substances is both a Bronsted- Lowry base and an Arrhenius base? (a) Chlorobenzene, Purification and Characterisations of Organic Compounds. That leaves A and C. Recall that the sodium will just end up floating around aimlessly, so the proton will pass between the HNO2 and the NO2-. You wouldn't get NaH because the environment is too acidic for it to form. HNO2 alone doesn't have this protonation problem, but that means it's actually less acidic because it doesn't have another acidic compound helping to donate a proton. Get your answers by asking now. Which of the following substances is a weak base? Which of the following is not a strong acid? A highly polar molecule that contains a weak bond between a hydrogen atom and another element would be, An Arrhenius acid is a chemical compound that, B. 2. So actually, the answer is C. This requires the calculation of pH of buffer solution for B) and C) . OI OH OH . In (c) and (d), -OH group is attached to alkyl groups which, due to … Of the following oxides, which is the most acidic? What is the new pressure...? Get more help from Chegg. A. H3PO4 (aq) + H2O <--> H30 (aq) + H2PO(4)- (aq). Phenol is most acidic of all the given compounds. those have citric acid! Increases the concentration of H+ ions in solution. the electron withdrawing effect of phenyl ring is somewhat diminished by the -CH2 group and it is therefore less acidic than phenol. In phenol, the electron withdrawing phenyl ring polarizes the O - H bond thereby facilitating the release of H as H + and hence phenol is most acidic. Which of the following characteristics describes a base? That leaves A) and C) You have seen that HNO2 has a lower pKa than CH3COOH - so at equal molarity the HNO2 solution is more acidic. In phenol, the electron withdrawing phenyl ring polarizes the O - H bond thereby facilitating the release of H as H, the electron withdrawing effect of phenyl ring is somewhat diminished by the -CH, Which one of the following compounds is most acidic? a. an acid changes the color of an indicator b. an acid has a bitter taste c. an acid ionizes in water d. an acid produces hydronium ions in water. Which of the following solutions is the most acidic? Show transcribed image text. Solution: Acidity of oxides increases with decrease in electropositive character of central atom. Assertion: Phenol is more acidic than ethanol. A solution with a pH=7. Mm. This means that B is relatively neutral. ? Nitro groups are more acidic than carboxylic acid groups. If the pH of a solution was 7 and you were to increase the hydronium ion concentration 1000x, what would be the pH be? Identify the salt that forms when a solution of H2SO4 is titrated with a solution of Ca(OH)2. :) However, it is not as acidic as a nitro compound. Write the expected electron configurations for each of the following atoms: Cl, As, Sr, W, Pb, Na+, I-, Mg 2+, S2-, and Cf.? 3. Nitro groups are more acidic than carboxylic acid groups. increased to 27◦C. If a compound has a negative charge on it and is in a salt form, it is likely more basic to neutral. Be is least electropositive. If it reacts with a compound that is a stronger acid than itself, water acts as a. Acidic. You can effectively eliminate the sodium on B and D, because it will just stay in the aqueous layer while the organics interact. The conjugate acid of the chloride ion, Cl-, is, A conjugate acid is an acid that forms when, Ions that are present before and after a neutralization reaction are, In an acid base reaction, the conjugate bases of the weaker acid is the, An amphoteric species is one that reacts at 25C as a(n), D. Remains after an acid has given up a proton, In the following reaction which substance is the conjugate base of HClO(4)? basic. bitter is oftentimes acidic. So it will form most acidic oxide. You wish to prepare 50.0 mL of 2.30 x 10^-2 M solution of C17H18F3NO.Prepare the pure drug deionized in water. D is actually slightly basic because of the negative charge on that oxygen being attracted to the positively charged sodium, so D is also incorrect. It'd be destroyed. Which of the following is most acidic? Which of the following species is the conjugate acid of another species in the list?