6- Radiation source in AAS device is hallow cathode lamp. 7- The PH of a solution Mg(OH)2 can affect a salt solubility by addition of H+ ion , pH decreasing while solubility of Mg(OH)2 will be increasing

Q: Molar concentration of NaOH solution: Volume of the original acid sample: Volume of NaOH titrant (at…

A: The question is based on the concept of titrations. we need to calculate acid dissociation constant…

Q: Which of the following solution pairs can be used as buffers? (Check all that apply) □HOH/KOH…

A: Buffer solution contains weak acid or weak base and corresponding salt of strong base or strong…

Q: 7) -AgBr + GAPO, =0 Ag,PO, + GaBr, - 8) H,SO, + B(OH), =0 B2(SO,)3 + _ - 9) Sg + O2 =0 O2 =0_SO,

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Q: Question 59 A buffer with [HA] = 0.21 Mand (A)-0.79 M has a pH of 3.91. What is the pK, of the weak…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Consider a buffer solution that is 0.70 M in HCIO and 0.70 in CIO". The Ka for HCIO is 2.9 x 10-8.…

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Q: 5. From the stock solutions of 1.00-mol L acetic acid and 1.00-mol L of sodium acetate, six…

A: The volume of 1.00 mol L-1 stock solution of acetic acid and 1.00 mol L-1 stock solution of sodium…

Q: Part A Calculate the pH of a buffer solution that is 0.265 molal in CH3COOH (K₂ = 1.75 x 10-5) and…

A: The objective of this question is to calculate the pH of a buffer solution using the Davies equation…

Q: Consider the titration of 100.0 mL of 0.100 M H2NNH2 by 0.200 M HN03. Calculate the pH of the…

A:

Q: The ionization constant Ka for formic acid is 1.77x10⁻⁴. What are the the pKa for formic acid and…

A: pKa=-log(Ka)pH of a weak acid;pH=12[pKa-logC]Where, C is concentration of the acid

Q: Activity 11 This problem is on how to determine the pH of a salt. The salt is NaCIO. Find the pH of…

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Q: Define the term Salt: A salt is any chemical component formed from the reaction of an acid with a…

A: Given statement: A salt is any chemical component formed from the reaction of an acid with a base,…

Q: Assuming that the solubility of Ca3(PO4)2(s) is 1.6×10-7 mol/L at 25°C, calculate the Ksp for this…

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Q: Consider a buffer made by adding 132.8 g of NaC,H₂O₂ to 300.0 mL of 1.41 M HC,HO2 (Ka = 6.3 x 105) 7…

A: Answer:Buffer solution is a type of solution that resists the change in its pH on adding small…

Q: A 30.0-ml, sample of 0.00200 M AgNO3 is added to 30.0 mL of 0.0100 M Nalog. What is the equilibrium…

A: AgNO3 is added to NaIO3

Q: A buffer solution is 0.491 M in Н,РО, and 0.316 Min NaH2PO4. If Kal for H3PO4 is 7.5 × 10-8, what is…

A: Solution, which resist in pH change value upon addition of small amount of strong acid or base (less…

Q: What is the pH of 0.45 mol/L solution of hypochlorous acid? (K = 3.0 x 10")

A: Hypochlorous acid is a weak acid and it dissociates partiallyLet us assume change in the…

Q: What is the solubility of PbF₂ in water? (Ksp of PbF₂ is 3.6 × 10-⁹) A) 0.0062 M B) 1.9 × 10-4 M C)…

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Q: K, value for H2S is 7.00. What mole ratio of KHS to H2S is needed to prepare a pH of 6.62? Submit…

A: The question is based on the concept of buffer solution.   A buffer is a solution which resist any…

Q: tep 4: Calculate the activity of the ions. What is the activity of Ca2+?

A: Ca2++2Cl-=CaCl2 That means 1 mol of calcium ion and 2 moles of chloride ion react and produce 1 mol…

Q: .4a) What the rate order with respect to the water? Notetreat the volume the water [10mL = 10M] and…

A: Since your question has multiple parts, we will answer the first question for you. If you want…

Q: Given the equation and following values, what is the concentration of the acid? (With solution)…

A: Given: Initial Volume of Analyte =10.150 mL Initial Volume of Titrant = 50.000 mL Final Volume of…

Q: Which is the correct expression for the solubility produ (A) Ksp = [Au?) (02) (B) Ksp = [Au?] (0212…

A: Au2O3 is the  sparingly soluble salt. Solubility equilibrium is established as follows,  Au2O3(s)…

Q: Calculate the the activity of Chloride ion in a solution containing 0.013 M MgCl₂ and 0.033 M Na₂SO4…

A: The activity coefficient of any electrolytic solution is related with the charge of the ions and…

Q: How many grams of AICI3 (s) should be dissolved, to prepare 1 liter of a solution which the…

A: The solution is provided below:

Q: Question 22 At 25 "C, Ke-1x 10-85 for the reaction (bePorws (be) (be),HL + oH6 + (be). FoL What is…

A: The equilibrium constant for a chemical reaction is represented as Kc.  The value of the reaction…

Q: A buffer solution made from HCIO and NaCIO has a pH of 7.21. If PK, for HCIO is 7.46, what is the…

A: pH of a buffer solution is determined by Henderson-Hasselbalch equation. pH=pKa+logA-HAOn…

Q: It is safe to make the simplifying assumption that x can be neglected in the denominator of the…

A: If the degree of dissociation of any acid becomes very low, then it is neglected in the denominator…

Q: 3. You work in an analytical testing lab and have been asked by your supervisor to purchase new pH…

A: Statements of null hypothesis and alternative hypothesis given below.

Q: What is the pKa value of Tris-HCl?

A: The molecular formula of Tris-HCl is: NH2C(CH2OH)3 ·HCl

Q: The concentration of Ag* in a solution saturated with Ag₂C₂O4(s) is 2.5 × 10-4 M. Calculate Ksp for…

A: The question is based on the concept of solubility product principle.It states that when a weak…

Q: 1 Combine the above reactions (2) and (3) to give the reaction of interest (1) in the below. space…

A: When an acid and a base combine together they result in the formation of salt and release water…

Q: 1) Using the measured pH, calculate the concentration of H3O+ and OH- at the equivalence point.

A: As per regulations we are only supposed to answer only one question.

Q: Ine cations that form yellow precipitate with K2CrOg in qualitative analysis of cations experiment…

A: The solubility of the ionic compound depends on the interaction of the cations and anions with water…

Q: Calcium phosphate is a sparingly soluble salt. Its solubility product constant, Ksp, expression is…

A: The expression for Ksp is dependent on the reaction and the stoichiometry of the reaction of the…

Q: A 750.0 mL sample of 0.18 M HCIO4 is titrated with 0.27 M NaOH. Determine the pH of the solution…

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Q: Calculation 1: Initial concentration of hexaaquacobalt(II) ion: 0.022M Calculation 2: Initial…

A: To calculate equilibrium concentratios , we would first write a balanced chemical equation for this…

Q: The equilibrium concentration of hydroxide ion in a saturated magnesium hydroxide solution is that…

A: For Mg(OH)2, Ksp = 4S^3

Q: What is the primary species in solution at the halfway point in a titration of NH: with HBr? A) NH:…

A: Ammonia is highly soluble in water. Ammonia reacts with water to form ammonium hydroxide. NH3aq +…

Q: A 25.5 mL sample of 0.269 M diethylamine, (C,H5)2NH, is titrated with 0.324 M perchloric acid. At…

A: millimoles of base = 25.5x 0.269 = 6.8595 6.8595 millimoles acid must be added  6.8595 = V x 0.324 V…

Q: QUESTION 16 Ką of hypobromous acid (HBrO) is 2.2*10-9 (2.2e-9). What is the pH of a buffer that is…

A: Ka = 2.2 × 10-9  pKa = - log (2.2 × 10-9) = 8.657  [NaBrO] = 0.155 [HBrO] = 0.161  pH = ?

Q: Please solve

A: For the reaction., Ca(OH)2 + 2 HCL = CaCl2 + 2 H2O

Q: 06 Question (1 point) See page 768 LAUNCH TUTORIAL LESSON COAST Tutorial Problem Consider the…

A: Step 1:Step 2:

Q: At 25 °C, only 0.0720 mol of the generic salt AB is soluble in 1.00 L of water. What is the Ksp of…

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Q: The ionization constant of a very weak acid, HA, is 1.8 × 10¬8. Calculate the equilibrium…

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Q: asap

A: Let us first calculate the value of pka of the acid.  pKa = -log(Ka)  Therefore, pKa1 =…

Q: Feedback Consider the titration of 100.0 mL of 0.8 M H₂A by 0.8 M KOH for the next three questions.…

A: Answer: This is a question based on acid-base titration of polyprotic acid (H3A) against a strong…

Q: 11) CF, + Br, O_CBr, + F2 - - 12) K+ MgBr O KBr + Mg 13) Na + NaOH + H2

A: Balance the following chemical reaction by hit and trial method.

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.