Lanthanide hydroxides and oxides can be ionic and basic and the basic nature decreases by the increase in the atomic number.

Q: Calculate K for the

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Q: Would you expect Fe2+ to be the stronger Lewis acid? Explain.

A: A Lewis acid is a substance that accepts a pair of electrons.  A Lewis base is a substance that…

Q: How does the change of color in indicators define the acidity or basicity of solution put into it?

A: It is Substance in which acid or base is added then due to difference in pH indicators changes it's…

Q: The average daily dose recommended by hematologists for drugs is no more than 200 mg in terms of…

A: The average daily dose of elemental iron in the term of moles is determined as follows.…

Q: In what terms can you express the alkaline strength of pearl ash?

A: Pearl ash is also known as potash, chemically it is potassium carbonate.

Q: contains

A: For calculating the pH, we can used Hinderson equation,  pH = pKa + log( [salt] / [ acid ] )  Where…

Q: A 2.14-g sample of sodium hypoiodite is dissolved in water to make 1.25 L of solution. The solution…

A: Sodium Hypoiodite is NaIO. It is a base and therefore, we will symbolize it by 'B' as per the…

Q: Calculate the pH of a solution of ammonium acctate. Given that: K, - 1.76 x 10, K,- 1.8 x 10 and K,…

A: A salt formed of weak acid and strong base is alkaline in nature and has a pH above 7 while a salt…

Q: A student determines that the value of pK, for HCN = 9.26 . What is the value of K,? a

A: Given  PKa for HCN   = 9.26  Ka    = ?

Q: a) Arrange the following ions in order of increasing acidity in aqueous solution: Fe3+. Na+, Mn2+.…

A: Fazan's rule helps to determine whether the compound is ionic or covalent. The postulates of Fazan's…

Q: What is the pH of a 0.540 M solution of Ca(NO,), (Ka of HNO, is 4.5 x 10*)?

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Q: In terms of pH indicators, please fully explain what must occur in a solution to observe a colour…

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Q: Due to the pandemic Covid-19, the uses of hand sanitizers are very important among us. Predict and…

A: Hand sanitizer is a neutral solution. When red cabage indicator was added to it becomes purple in…

Q: Oxides can react with water to form acids or bases. Identify each of the following oxides as acidic…

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Q: Explain the chemical properties of acidic solutions and alkaline solutions taking into consideration…

A: Acids are sour in taste. Acids react with carbonates and hydrogen carbonates to form a salt, water,…

Q: What is the maximum [CO1 that can exist in a 1.8 x 10 M AGNOS solution?

A: The Ag+ ions coming from both AgNO3 and Ag2CO3 are to be considered for the calculation. As shown…

Q: Use the References t The pH of an aqueous solution of 0.177 M sodium fluoride, NaF (aq), is This…

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Q: The pOH of an aqueous solution of 0.354 M nitrous acid is  .

A: Given: Concentration of HNO2 = 0.354 M

Q: Which of these indicators is best suited to distinguish between a solution that is slightly acidic…

A: How to differentiate between slightly acidic and slightly basic solution with the help indicator?

Q: Give the increasing order of basic strength of the given compounds.

A: Among the given molecules, piperidine(iii) is more basic than pyridine(ii) and pyrimidine(i). This…

Q: C D B

A: Bronsted-Lowry Acid is any species that can donate a proton. When an acid and base react with each…

Q: What is the relationship between pH and concentration of H3O+ (or H+) please be detailed with…

A: Interpretation - The relationship between pH  and concentration of H3O+ (or H+) is to be explained.…

Q: Nitrous acid is a weak acid. Would you expect solutions of nitrous acid and nitric acid, of equal…

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Q: The following reaction has a AG° value of +18.43 kJ/mol at 25 °C. HA(aq) + H;O(1) H;0 (aq) + A (aq)…

A: We have given that  HA(aq) + H2O(l) <-----> H3O+(aq) + A-(aq)   ∆G° = 18.43 KJ/mole  T = 25°C…

Q: Explain giving a reason each for the following situations: (i) In aquesous medium HCl is a stronger…

A: The chemical reactivity of a compound depends upon the strength of the bond between atoms and…

Q: Oxides can react with water to form acids or bases. Identify each of the following oxides as acidic…

A: All oxides of metals are basic while those of non - metals are acidic  Cl and N are non metals hence…

Q: 25. Mik of nmagnesia, Mg(OH),, has a pH of 10.5. Calculate the hydronium jon concentration of the…

A: Given pH for milk of magnesia Mg(OH)2 =10.5 We know, pH=-log[H3O+] 10.5 = -log[H3O+] Taking antilog…

Q: is acidic or cor [H*]

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Q: How many times more acidic is battery acid with a Ph of 0 than tomatoes with a Ph of 4?

A: Given: pH of battery acid = 0  And pH of tomatoes = 4

Q: In testing the presence of sulfate, chloride and halides, why is it important that the solution be…

A: Test for sulfate ion: The sulfate ions are detected by using barium chloride solution. At first the…

Q: List and discuss the basicity of the following compounds.

A: Basicity of any molecule depends on the tendency to donate electron pair. More is the tendency of…

Q: The first step in purifying the urine collected on the ISS is to treat every liter of urine with 20…

A: #(a): H2SO4 is a diprotic acid. The dissociation equations are: H2SO4(aq) ----> HSO4-(aq) +…

Q: It is easy to measure the pH of a solution of a compound such as potassium hydrogen phosphate or…

A: The pH of a basic or an acidic solution is measured easily using pH meter. Calculating the pH of a…

Q: calculate the pH-value and the activity of all ions in a 0.01 molL-1 MOH solution. MOH shall be a…

A: pH is the measure of the acidity or basicity of the solution. Ph scale has range in from 1 to 12. If…

Q: Organic molecules often have polar covalent bonds. How does this provide opportunities for chemical…

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Q: Hypobromous Acid, HOBr, and hypoiodous acid, HOI are both weak acids.  Which acid is stronger and…

A: Hypohalous acids tend to be weak acids and they tend to get weaker as the halogen progresses further…

Q: 2.44 moles of HNO3 is added to water and the final volume is 330mL. The pH of this solution was…

A: Nitric acid is strong acid. Given , pH = 1.47

Q: What substance(s) have a pH most similar to that of water (pH 7)?

A: Salt of strong acid and strong base have a pH similar to that of water i.e. pH = 7.

Q: The pOH for 0.2 M sulfuric -2 acid solution is

A: Formula used  ph = -log[H+] ph + poh = 14

Q: Of the hydrogen halides, only HF is a weak acid. Give a possible explanation.

A: Acidity of acid depends on stability of conjugate base. And also how much easily acid undergoes…

Q: Identify which of the following oxides will create a basic solution and explain why. а) СО. b) 0, c)…

A: * The oxide which combine with water and  give basic are basic oxide . * The oxide which combine…

Q: prepared

A: Equilibrium Reaction is :  F^-(aq) + H2O(l) <------> HF(aq) + OH-(aq)    Major species are :…

Q: explain the cycle of acidic precipitation?

A: Acidic precipitation means, the acid in gaseous form released in air, reacts with the moisture in…