A water sample is 0.00052 M in CaCO3 (MW= 100.09 g/mol). The concentration in parts per million is A. 0.052 B. 5.2 x 10^-5 C. 52.0 D. 5.2

Q: 30. A student is given 50.0 mL of a solution of Na,CO; of unknown concentration. To determine the…

A: #30: The balanced molecular equation is: Na2CO3(aq) + Ca(NO3)2(aq)   ----> 2NaNO3(aq) + CaCO3(s)

Q: For the hypothetical reactions 1 and 2, K1= 10^2and K2= 10^–4. 1.A2(g) + B2(g) 2AB(g) 2.2A2(g) +…

A: 1.  A2(g) + B2(g) <--> 2AB(g)   K1 = 102   K1 = [AB]2/[A2]2[B2]2 ...................(1) 2.…

Q: 9. A student carries out a titration to determine the molar mass of an unknown acid, A • The student…

A: Given: Mass of acid = 2.24 g Volume of solution = 250.0 cm3 Volume of acid = 25.0 cm3 Molarity of…

Q: A sample of 7.90 g of Mg(OH)2 is added to 25.6 mL of 0.225 M HNO3. a.) Write the chemical equation…

A: (a) When magnesium hydroxide added with nitric acid, Following balanced Chemical Reaction occurs -…

Q: Two ways the concentration of a solution can be reported are: 1) mass % and 2) molarity. The reagent…

A: Given, the weight percent of HCI is 36.5-38%. This indicates that in 100g of solution of HCI, you…

Q: A student is given a solution containing 0.932 g of an unknown acid, H2A(aq) To determine the molar…

A: It is given that 0.932 g of a diprotic acid is present and is titrated against 0.481 M KOH solution…

Q: To neutralize the acetic acid contained in 10 mL of commercial vinegar, 18 mL of a sodium hydroxide…

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Q: A solution of HCl was prepared from a stock solution as follows: 50.00 mL of stock solution was…

A: Given: Volume of stock solution used = 50.00 mL Volume of dilution A prepared = 250.0 mL Volume of…

Q: What volume of 0.260 M Na2S solution is required to completely react with 40.00 ml of a 0.315 M…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: (a). HCl Analysis. You could add HCl(aq) to the solution to precipitate out AgCl(s). What volume of…

A: A) HCl analysis; Given that,  Volume of 0.170 M AgNO3 solution = 13.0 mL = 0.013 L Moles of AgNO3…

Q: 28. A neutralization reaction occurs when 120.00 mL of 0.500 mol/L LiOH and 160.00 mL of 0.375 mol/L…

A: Given that,volume of LiOH = 120.0 mLConcentration of LiOH = 0.500 mol/LVolume of HNO3 = 160.0…

Q: 9. A city's water supply is fluoridated by adding NaF. The desired concentration of F is 1.6 ppm.…

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Q: In an analysis to determine the concentration of Sn²+( (aq) ions in a tin ore solution, a 25.0 mL…

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Q: a) There is a sample that contains the mixture of CuCl2(s) and KCl(s) with a mole fraction of 6.90%…

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Q: A 110.520 g sample of mineral water is analyzed for its magnesium content. The Mg+ in the sample is…

A: ppm refers to parts per million which is a unit to express the concentration. It can be expressed as…

Q: 6.) One way to determine the amount of nitrogen in a sample is through a method called Kjeldahl…

A: HCl is monobasic acid and NaOH is monoacidic base Therefore, for neutralization, moles of NaOH used…

Q: Part 1- Complete the following chemical reactions. Part 2- Based on solubility rule, predict state…

A: The first reaction is a double displacement reaction. In this reaction, the metal and the anion are…

Q: What is the maximum volume of 0.25 M sodium hypochlorite solution (NAOCI; laundry bleach; MW= 74.44…

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Q: 3. Give the net ionic equation for the reaction (if any). that occurs when aqueous solutions of K,S…

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Q: 10) How many miligrams of BaSO4 are dissolved in. a 225 mL sample of BaSO4(aq)? (Hint: calculate the…

A: Solubility product Ksp = 1.1 x 10-10 Equation representing dissociation of BaSO4 : BaSO4 ⇌ Ba2+ +…

Q: onsider a 0.227 M aqueous solution of sodium hydroxide, NaOH.   A. How many grams of NaOH are…

A: #A: Given the molarity of NaOH = 0.227 M Required conversion factor: 0.227 mol NaOH = 1 L

Q: What do you understand about the manufacture of

A: Addition of solvent is called dilution , in dilution process no.of moles of solute is constant…

Q: An approximately 0.1 M NaOH solution is made by adding 4.0 g of solid NaOH to 1000 mL. of water. The…

A: Titration is a common laboratory method of quantitative analysis to determine the concentration of…

Q: [Nonacid] Molecules Dissolve... Intact hmg ... H20 C12H22011(s) → C12H22O11(aq) A2??4 Covalent…

A: Given: C12H22O11(s)+H2O(l)→C12H22O11(aq)C6H5OH(s)+H2O(l)→C6H5OH(aq)SiO2(s)+H2O(l)→SiO2(aq)

Q: When CH₂OH is dissolved in water, how many particles are in the solution? A. 1 B. 3 C. 5 D. 6

A: There are mainly two type of compounds ,one of them are ionic while another are covalent.  Ionic…

Q: 0.70N

A: Given data set: Mass of potassium dichromate= 20 g Molar mass of potassium dichromate= 294 g Volume…

Q: Consider the following reaction:            Mg(s)    +      2HCl(aq)        →            MgCl2(aq)…

A: In a chemical reaction, reactants react to form the products.  Each reaction is characterised by…

Q: 4. A 10.00-mL sample of a vinegar solution is titrated with a 0.178N NaOH solution. It requires…

A: Answer: This is the question on titration between acid and base where base is the the titrant and…

Q: A preparation of soda ash is known to contain 98.6% Na2CO3 (105.99 g/mol).  If a 0.678-g sample…

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Q: 6. The purity of a sample of sodium oxalate, Na2C2O4, is determined by titrating with a standard…

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Q: Part 3: What mass of tin was used to make the tin solution? In a similar experiment, a sample of tin…

A: Answer:The number of moles of a solute in a solution is always equal to the product of molar…

Q: a. An aqueous solution contains 4.60 g of calcium chloride, CaCl2, per liter. What is the molarity…

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Q: Suppose a group of volunteers is planning on building a park near a local lake.the lake is known to…

A: Given, mass of solute =168.3 mg =168.3 ×10-3 gramvolume of lake =14.7 cm3density of lake water =1.00…

Q: NaOH was standardized by titration against a standard acidic solution of potassium hydrogen…

A: Given that NaOH was standardized by titration against a standard acidic solution of potassium…