Alkalinity is normally measured in terms of CaC03. What is the formula weight of this compound? In what way might this formula weight make CaC03 a convenient reference material for alkalinity?

Q: Given the following reactions: 3C D   KC​=5.52×10−4 D 3A+3B   KC​=6.73×10−2   Calculate the value…

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Q: The digestion of a 0.1387-g sample of a phosphorus containing compound in a mixture of HNO, and…

A: Solution: Given: Mass of the sample containing phosphorus = 0.1387 gMolarity of NaOH solution =…

Q: At the Oak Ridge National Laboratory in Tennessee, soils are heavily contaminated with mercury…

A: The complete balanced reaction = HgS (s) + H+ ↔ Hg+2 + HS-Given the temperature = 25∘CFor a general…

Q: Please write the balanced chemical equations on the observations of heating NaHCO3 and bubbling the…

A: Sodium bicarbonate on heating decomposes into sodium carbonate,water and carbon dioxide.  Ca(OH)2 ,…

Q: 1. Calculate the molarity of a solution prepared by dissolving 11.5 g of solid NaOH in enogh water…

A: Molarity(M) is the moles of solute per unit volume of the solution in litres. It's unit is mol/L…

Q: Write the balanced molecular equation for the neutralization reaction between HIHI and…

A: When an acid and base reacts with each other to form salt and water and involves H+ and OH- ions in…

Q: What is Ca(CN)2 reaction in water?

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Q: The hardness of water (hardness count) is usually expressed in parts per million  (by mass) of…

A: The hardness of water is usually expressed in parts per million of CaCO3 . The hardness count of…

Q: e. HCOOH + MNO4¯→CO, + Mn2* in acidic solution

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Q: HA, a weak acid, also forms the ion HA in solution. The reaction is HA(aq) + A (aq) = HA₂ (aq) The…

A: The reaction of the weak acid HA forming HA2- solution:We have to calculate the concentrations of…

Q: 5. Hydrogen cyanide has the chemical formula HCN. The compound occurs as a colourless gas or a pale…

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Q: Write a balanced equation for the reaction of H 2SO 4 with NaHCO 3.

A: The balanced equation for the reaction of H2SO4 and NaHCO3 has to be given.

Q: Write the balanced net ionic equation for the reaction that occurs in the following case:…

A: Oxidation is the loss of electrons which occurs at anode while reduction is the gain of electrons…

Q: Calculate the concentration of fluoride ions in a saturated solution of scandium(III) fluoride at 20…

A: The chemical equation can be given as follows: ScF3↔Sc3++3F- Ksp = 4.2×10-18 The expression for…

Q: A sample of impure tin of mass 0.530 gg is dissolved in strong acid to give a solution of Sn2+Sn2+.…

A: Answer: To solve this question we have to convert the moles of NO3- into moles of tin by using…

Q: Consider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)) from the…

A: To calculate the moles of alum formed from the given number of moles of each reagent, we would use…

Q: Can you compare the solubility of Co2 in water compared with saturated NaCl solution?

A: solubility of Co2 in NaCl solution is less than in water increases with the temperature and…

Q: Write the net ionic equation for the equilibrium that is established when calcium cyanide is…

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Q: What is the pH of a 0.237 solution of sodium hypobromite (NaOBr)? The Ka of hypobromous acid is 2.24…

A: Ka for HBrO , Ka = 2.24 × 10-9  Kb = 10-14 / 2.24 × 10-9 = 4.46 × 10-6  NaOBr ---> Na+ + OBr-

Q: (a) Write chemical equations to show what happens when each of the following substances is mixed…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: [Co(H₂O)6]²+ (aq) + 4Cl¯(aq) → [CoCl4]²¯(aq) + 6H₂O(l)

A: Le Chatelier's Principle states that a reaction moves towards a less number of moles.

Q: What is the pH of a 0.32 M solution of a weak acid, HCNO if Ka for HCNO is 2.0 x 10-4?  (SHOW…

A: a) Given that,  Molarity of HCNO solution = 0.32 M Ka value of HCNO acid = 2.0×10-4 HCNO is a weak…

Q: The Solvay process for the manufacture of a sodium carbonate begins by passing ammonia and acrbon…

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Q: Complete this reactionand then balance it: K (s) + H2O (l)

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Q: write the net ionic equation for reaction of sulfate ion with Ca(NO3)2

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Q: a Nitrogen(II) oxide and hydrogen gases react to form ammonia gas and steam. b Hydrogen peroxide…

A: Answer:- This question is answered by using the simple concept of writing the balanced chemical…

Q: To oxidize the iron in 1.00 gram of FeSO4·(NH4)2SO4·6 H2O requires 5.00 mL of HNO3. (Fe 2++ NO3― +…

A: The concentration of the solution provides information about the quantity of the substance present…

Q: 4. Write a dissociation equation for the following: a) CaCl b) Al-(SO.)x0).

A: Dear student I have given answer to your question in the image format.

Q: What is the pH of a 0.25 M solution of potassium hypobromite, K+BrO (Ka (HBrO ) = 2.0 × 10-9)? 10.46…

A: Given:Concentration of potassium hypobromite, K+BrO-, solution = 0.25 MKa for HBrO = 2.0 × 10-9We…

Q: A lake has been acidified to a pH of 4.325. If the lake has a volume of 9.65x104 cubic meters, what…

A: Volume of the lake = 9.365×104 cubic meters pH of the lake = 4.325 The chemical reaction given is…

Q: Given the following reactions: 3C = D K= 8.33 x 104 D= 3A + 3B K= 5.33 x 102 Calculate the value of…

A: Answer: Equilibrium constant is the ratio of active masses of products and active masses of…

Q: The preparation of cis-platin [Pt(NH 3) 2CI 21, an anticancer drug, uses an equilibrium reaction:…

A: K2PtCl4(aq) + 2NH3 (aq) <------> 2KCl (aq) + Pt(NH3)2Cl2 (aq)

Q: Write the balanced neutralization reaction between Ca(OH), and HBr.

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Q: Calculate the pH of a solution that is 0.100 M in Fe(NO3)3.

A: K=[H3O+][Fe(H2O)5OH]2+[Fe(H2O)6]3+

Q: A lake has been acidified to a pH of 4.138. If the lake has a volume of 1.87x105 cubic meters, what…

A: given pH= 4.138 volume = 1.87*10^5 cubic meters than pH =7

Q: Write the balanced net ionic equation for the reaction that occurs in the following case:…

A: In this question we have to tell the balanced net ionic equation.

Q: the experiment on "Chemical Equilibrium and Le Chatelier's Principle" which of the following will…

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Q: A weighed sample of sodium nitrite was treated with 0.05 mol of ceric sulfate in solution, in…

A: The amount of reactants that react completely to form the product can be identified based on the…

Q: In water, Na AsO dissociates into Nat and AsO ³. AsO ³ is a polybasic ion and ionizes in water. If…

A: Given thatMass of Na3AsO4 = 40.00 gmolecular weight of Na3AsO4 = 207.89 g/molnumber of moles of…

Q: What is the pH of a 0.100 M solution of sodium hypobromite (NaOBr)? The Ka of hypobromous acid is…

A: The question is based on the concept of salt hydrolysis. We need to calculate pH of the given salt…

Q: se. 'asam Ca + O2 -> CaO Ca = Ca = 0 = 0 =

A: Balanced the given reaction ---

Q: Is Mg(OH)2 a acid, base, or neither?

A: According to the Arrhenius concept of acids and bases :-  Acids donate H+ ions in water and bases…

Q: Calculate the molar solubility of Ga(OH); (Kp= 7.28 x 10-3) in a solution that is buffered at…

A: Molar solubility of a compound denotes the number of moles of solute which can be dissolved per…

Q: a) Write the formula for the conjugate base of HPO4^-2  b) Write the formula for the conjugate acid…

A: Answer 1: Introduction:  According to Bronsted Lowry concept, an acid is substance which can donate…

Q: 1. Write a balanced net ionic equation for the equilibrium involving HSO4- ion.  2. The reaction is…

A: The given reaction is, HSO4- (aq) + H2O ⇔H3O+ (aq) + SO42- (aq) To write:  balanced net ionic…