Q: Strong acids used commonly used in laboratory
A: There are many strong acids which are commonly used in laboratory.
Q: pH of a solution
A: We know that pH is the negative logarithm of concentration of H+ ions in dilute solutions. And pOH…
Q: Which one of the following is a mineral acid. A) Acetic acid B) Formic acid C) Carbonic acid D) None…
A: Mineral Acids are soluble in polar solvents , so carbonic acid is consider as mineral acid.
Q: A titration is ?
A: Interpretation- To explain what is titration
Q: the pH of
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Q: In acidic solutions, the pH is:
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Q: the pH of the solution. Be s
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Q: What is equation for the self-ionization of water.
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Q: the table for characteristics of acids and bases er color change Acids Base
A: pH scale helps us to determin acidity or basicity of a solution.pH equal to 7 means solution is…
Q: What must be done first before applying unit analysis to solve an acid–base titration problem?
A: The very first step is to write the neutralization reaction which is taking place between the acid…
Q: what is buffer and pH?
A: Buffer solution is containing of weak acid and its conjugate base, or weak base and its conjugate…
Q: What is the concentration of hydrochloric acid equivalent to
A: Molarity is the no. of moles of solute dissolved per litre volume of the solution. Molarity is…
Q: In an acid base reaction what are the products
A: Neutralization reaction: An acid reacts with a base to form salt and water, the reaction is known as…
Q: the pH of a buffer solutiont
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Q: the pH of the solution
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Q: An aqueous solution of acids causes blue litmus paper to_ An acidic solution contains more ions.
A: The acidic nature of the substance is based upon the number of protons present in it. Acidic…
Q: If you increase the concentration of an acid, what changes do you observe in both weak and strong…
A: pH = - log [H+] Lesser the value of pH indicates the high acidic strength of the solution.
Q: Example of a strong base pH
A: Answer Strong base has low POH and high PH PH = 14 - POH
Q: If the PH of a solution is 3.738, the hydrogen ion concentration is ?
A: The given pH is 3.738
Q: Can you explain the equilibrium in acids and bases (arrhenius definition)?
A: An acid is a substance that gives ions in its solution whereas a basic substance gives ions in its…
Q: The products of a strong acid/strong base reaction are A) Water B) Salt C) All of the above
A: A neutralization reaction is a chemical reaction between an acid and a base that forms salt and…
Q: Calculate the pH of the solution. (The temperature of
A:
Q: For a dilution of acid, acid is added into water and not water into acid. State the reason ?
A: For a dilution of acid, acid is added into water and not water into acid.
Q: 11. What is the pH of
A: KaHNO2=4.0×10-4Kb for NO2-=KwKa As Ka×Kb=Kw =1×10-144.0×10-4 or…
Q: Calculate the pH of the following solution:
A: Given :- concentration of NaOH = 2.4 x 10-5 M To calculate :- pH of the solution pH + pOH = 14
Q: >Determine the PH Of the solutions:
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Q: The pOH of this solution is
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Q: Which one of the following is a diprotic acid?
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Q: An Arrhenius acid is a
A: There are various concepts of acids and bases :- Arrhenius concept Brønsted-Lowry concept Lewis…
Q: équations for each of the - aqueous barium hydroxide. vith nitrous acid
A: Balanced molecular equation, 2CH3COOH(aq) + Ba(OH)2 ----> Ba(OOCCH3)2(aq) + 2H2O(l) Net ionic…
Q: Which of the following solutions is a buffer system?
A: In the given question we have to identify buffer system by the condition of buffer formation. we…
Q: Determine the pH of the resulting solutions
A: PH is calculated by using the concentration of H+,PH= -log [H+]PH range is in between 0 to 14 7 PH…
Q: What are the property of bases
A: Bases have physical and chemical properties : Physical properties : 1) Bases have pH greater than…
Q: Is boric acid weak acid or strong? Why?
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Q: culate the concentration of
A: Mixture of acetic acid and HCl is titrated against NaOH. In which HCl is a strong electrolytes and…
Q: How can the concentration of the solution be calculated?
A: Introduction: The concentration of a solution is defined as the amount of solute dissolved in a…
Q: What is an acidic and bases?
A: There are different definitions of ACIDS which are as follows An Arrhenius acid is any species that…
Q: . What are three characteristics of acidic solutions? a. b. c.
A: Acid: An acid is a substance that produces more of H+ ions in water.
Q: What is the procedure to compare the acidity of any two acids ?
A: The compounds which release hydronium ion in aqeuous solution are called acids. Generally, it can be…
Q: Question 19 solution.
A: One mole of Ba(OH)2 produces 2moles of OH- ion. Hence, [OH-] = 2 • [Ba(OH)2] concentration [OH-]…
Q: Calculate the molar concentration of
A: Solution: From the Nernst equation we can calculate cell potential Ecell= E0cell - 0.0592n log Q We…
Q: The hydroxide ion concentration, [OH'],
A: NH(CH3)2 + H2O --------------> H2N(CH3)2+ + OH- initial…
Q: Is sulphuric acid is as an amphiprotic substance? define
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Q: Draw a Schematic Diagram of the Procedures of Titration
A: The different steps involved in titration procedure can be mentioned as follows: After collecting…
Q: What is the pOH of the solution i
A: pH = -log[H+] pOH = -log[OH-] pH + pOH = 14.0
Q: concentrations of
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Q: pH of
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Q: the concentration in
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- 51 mL of 0.060 M NaF is mixed with 17 mL of 0.15 M Sr(NO3)2. Calculate the concentration of F- in the final solution. Assume volumes can be added. (Ksp for SrF2 = 2.0×10-10) 0.038 M 0.0075 M 0.045 M 0.015 M 0.00012 MIn following these steps . Complete the table and provide th given chemical reactions in the qualitative analaysis of Group 3 Cations. Procedure 1. Place 20 drops of each of the following aqueous solutions to separate centrifuge tubes: 0.1M Cr (NO3)3, 0.1M Al (NO3)3, 0.1M Co (NO3)2, 0.1M Zn (NO3)2, 0.1M Mn (OH)2, 0.1M Ni (NO3)2, 0.1 M Fe (NO3)3. Make each solution basic by adding few drops of 6M NH4OH. Confirm using a litmus paper. 2. Add 5 drops of freshly prepared 6M (NH4)2S to each centrifuge tube. Place the samples in thecentrifuge machine for 3 mins. After centrifuge record results. Decant the supernatant liquid of all the samples. 3. Add one drop of NH4OH in each centrifuge tubes. Add 20 drops of distilled water in eachcentrifuge tubes. Then add a few drops of 6M HCl in each solution. Place the samples in the water bath for 10 mins. After water bath, centrifuge the samples for 3 mins. 4. After centrifuge, add a few drops of 6M NH4Cl in each sample. Decant the supernatant liquid…Yttrium (III) carbonate (MM = 357.84 g/mol) has a Ksp of 1.0 x10-31. If 15.5 g Y2(CO3)3 is stirred into 2.16 L H2O, how many micrograms of yttrium (III) carbonate will dissolve?Report your answer to the nearest whole number.
- 1. Commercial vinegar was titrated with NaOH solution to determine the content of acetic acid, CH3COOH. For 20.0 cm3 of the vinegar, 26.7 cm3of 0.60 mol dm-3 NaOH solution was required.What was the concentration of acetic acid in the vinegar if no other acid was present? (Thanks for your help) A. 0.45 mol dm-3B. 0.60 mol dm-3C. 0.80 mol dm-3D. 1.60 mol dm-3A sample of 0.0500 M barium nitrate solution and 0.0500 M sodium sulfate solution was labeled with radioactive . The radioactivity of the initial sodium sulfate solution was 1.22 x106counts per second. After the formation of the precipitate and purification by filtration the remaining radioactivity in solution was 250 counts per second. Calculate the Ksp for the following dissociation: BaSO4(s) ↔ Ba+2(aq) + SO4-2(aq) Group of answer choices 1.05x10-10 5.96x104 1.02x10-5 5.12x10-7Calculate the solubility of BaSO4 solid in 0.0167 M Ba(NO3)2 solution, taking into activity ( Keq=1.1x10-10 for BaSO4 , activity of Ba++=0.46 and activity of SO4-2=0.44)
- A first-stage recovery of magnesium from seawater is precipitationof Mg1OH22 with CaO:Mg2+(aq) + CaO(s) + H2O(l)---->Mg(OH)2(s) + Ca2+(aq) What mass of CaO, in grams, is needed to precipitate 1000lb of Mg(OH)2?If 2.8 g of Zn(OH)2 is added to 1.56 L of water, what mass will dissolve? (Ksp = 3.0 × 10-17 for Zn(OH)2.)84 mL of 0.060 M NaF is mixed with 28 mL of 0.15 M Sr(NO3)2. Calculate the concentration of Sr2+ in the final solution. Assume volumes can be added. (Ksp for SrF2 = 2.0 × 10-10) A. 0.038 M B. 0.00012 M C. 0.015 M D. 0.045 M E. 0.075 M
- If the concentration of Sn2+ ions in a solution of Sn(OH)2 was measured to be (1.24x10^-3), what is the Ksp value for Sn(OH)2?Calculate the number of grams of solid Mg(OH)2 (58.3 g/mol) that will dissolve in 650 mL of water. For Mg(OH)2, Ksp = 1.5 x 10-11 (Assume no volume change when the solid is added)Four tablet samples (1.6308 g) which contain acetylsalicylic acid were dissolved in a 100 mL water/ethanol mixture. A 25-mL aliquot was obtained and titrated with standard 0.1273 N NaOH solution using a pH meter. The potentiometric data are given below. Calculate the % acetylsalicylic acid (EW=180.157 g/mol) per tablet. Prove that the active ingredient is indeed acetylsalicylic acid (pKa=3.48).