How much amount (in grams) do you need to prepare the following solutions 500.0 mL 0.1000 M stock EDTA solution from Na2H2EDTA•2H2O (FW=372.24) and MgCl2•6H2O crystals 100.0 mL 0.0500 M stock Ca2+ solution from pure CaCO3 (FW=100.09) and concentrated HCl 250 mL 1.0 M NH3-NH4+ pH 10 buffer solution from NH4Cl and NH3

Q: A 0.2500-g of dry CaCO3 was completely dissolved into a solution of 5-mL conc. HCl and 50-mL…

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Q: What is the molar solubility of calcium carbonate (AGrxn=52.850KJ/mol) at 52.4°C in a solution…

A: The ratio of moles to the volume is known as concentration.

Q: A 220 ml solution of CMC agar contains 84.99 µg NaNO3 and 174.18 µg K2HPO4, respectively. Determine…

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Q: Arrange the following steps in the standardization of 0.1N AgNO3 * Carefully bring the mixture to a…

A: To arrange the following steps in the standardization of 0.1N AgNO3.

Q: Consider the reaction: Cu2+(aq) + 4NH3(aq) 2 Cu(NH3)4²*(aq) Kf= 1.7x 1013 What is [Cu2*] remaining…

A: Answer: This question is based on the equilibrium concentration of an ion due to dissociation of a…

Q: another concentration unit is % (m/v) 410.0 g of glucose dissolved in enough water to give 325 mL,…

A: Given, amount of glucose i.e. solute =410.0 gramvolume of solution =325 mLwe are asked to calculate…

Q: 0.250 g sample of impure CaCl2 is titrated with 40.00 mL  0.105 M AgNO3 solution. Calculate the…

A: Given: 1) Mass of impure CaCl2 = 0.25 g 2) Volume of AgNO3 = 40 mL 3) Concentration of AgNO3 = 0.105…

Q: The solubility  of magnesium oxalate, MgC2O4, in water is (7.70x10^0)x10-3 mol/L. What is the Ksp…

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Q: A pharmacist needs 250 mL of 80% v/v alcohol to macerate a dried sample weighing 100 grams. If the…

A: Given : Desired concentration (% (v/v)) of alcohol = 80 % Volume of solution required = 250 mL And…

Q: A stock solution of 70% v/v ethanol was diluted with distilled water to prepare 1L of 21% v/v…

A:

Q: A community in a mountainous area of Bohol uses water collected from a nearby natural spring. A…

A: To describe the preparation of the following reagents: 100 mL of 1.0M stock EDTA solution.  0 L of…

Q: Although other solvents are available, dichloromethane(CH₂Cl₂) is still often used to “decaffeinate”…

A: Solubility of caffeine in CH2Cl2 is 8.35 times of H2O. a) Volume of cola = 100.0 mL Amount of…

Q: Question 27

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Q: The salt content was extracted from a 12.0000 g junk food sample. The extract was diluted to 100.00…

A: Given that -  Mass of junk food sample = 12.0000 g  Volume of diluted extract = 100.00 mL  Volume of…

Q: KHP + NaOH—> KNaP +H2O Data of trial Mass of KHP : 0.8084g Initial buret containing NaOH reading:…

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Q: 30.0 mL of 0.400 M Zn²⁺ is mixed with 100.0 mL of 0.200 M F⁻ (Ksp ZnF₂ = 0.030). In the mixture you…

A: In the given question we have to observe the reaction upon mixing of Zn2+ and F- .  First of all, we…

Q: For Questions 24 and 25, find the mmol, mEq, and mOsm for specified items. If a unit does NOT apply,…

A: In the given problem we need to calculate the mmol, mEq and mOsm of the given drugs.

Q: 2MnO4— +  5C2O42— + 16H+ 2Mn2+ + 10CO2 + 8H2O A solution of KMnO4 was prepared and 50.99 mL was…

A: Dear student, As you have asked multiple question but according to guidelines we will solve first…

Q: Analysis of a mixture consisting of NaOH + NażCO3 + inert matter gives the following data: Sample…

A: Mass of original sample = 10.00 g Volume of actual solution made with original sample = 250.0 mL…

Q: H.W:- 1-Show by calculations how could you prepare the following solutions: a) 750 ml. of 0.172 F…

A: The question is based on the concept of solution. we have to prepare the solutions of given…

Q: D. None of the above 11. A 315mL of water was added to 2100 mL of 19M NaCI solution. What is the new…

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Q: 24. Complete the (ag) dissolution equations for each solute, identify the solution as electrolyte or…

A: Here all the solutions are electrolyte except CH3OH.

Q: A Mn2* substock solution was prepared by pipetting 6.00 mL of the stock solution into a 200.00 mL…

A: Given data are - concentration = C1 = ? concentration = C2 = 0.18 M volume = V1 = 6.00 ml. volume =…

Q: A 0.4000g sample that assayed 96.4% Na2SO4 required 41.25 mL of a barium chloride solution.…

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Q: An ore was found to contain iron and ferric oxide, if 0.5g of the ore, after solution in acid and…

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Q: In an organic chemistry lab, some camphor crystals were synthesized but there were some traces of…

A: We know that, ∆Tf = Kf × m where ∆Tf  is the freezing point depression, Kf is freezing point…

Q: An unknown 36% v/v monohydroxide reagent has a density of 1.8 g/mL. Zeus wanted to determine the…

A: Suppose, concentration of the unknown base in 36% v/v solution is S M The required formula is: V1×S1…

Q: 1.Determine the mass of sodium chloride required to prepare 400 ml of a Mueller-Hinton broth…

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Q: What is the solubility (in g/L) for PbBr2(s) in a 1.00 L solution that has 251 g Pb(NO3)2 already…

A: Given Mass of Pb(NO3)2 = 251 gMolar mass of Pb(NO3)2 = 331.2 g/molMoles of Pb(NO3)2 = Mass of…

Q: A standard solution of NaOH as prepared by dissolving 4g of the solute in 250cm3. A) determine the…

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Q: 2) If 25g of NaCl is dissolved into a final volume of 500mL, what is the percent (w/v) concentration…

A: Note : As per our guidelines we are supposed to answer first question ,Please resubmit the other…

Q: What volume, in milliliters, of sodium acetate 1:150 (w/v) solution do you need to obtain 1.5 mEq…

A: The volume of sodium acetate solution (1:150 ; w/v) is 18.45 mL.

Q: Describe the preparation of a 45.0 mL of 0.500 M solution of potassium permanganate solution,…

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Q: A solution was prepared by dissolving 1210 mg of K3Fe(CN)6 (329.2 g/mol) in sufficient water to give…

A: Molarity is defined as number of moles of solute per liter of solution. M = n/V  where, M = molarity…

Q: One gallon of certain lotion contains 946 mL of benzyl benzoate. Calculate the percentage (v/v) of…

A: Solution - According to the question - Given - One gallon = 3.8 liter 3.8 liter contains 946 mL of…

Q: The solubility of Ni(OH)2 in water at 25c is measured to be 4.9 x 10^-4 g/L. Use this information to…

A: The solubility reaction is of Ni(OH)2 is given by  => Ni(OH)2 (s) -----> Ni2+ (aq) + 2 OH-…

Q: Determine the minimum number of extractions required to ensure 99.9% of the solute is extracted from…

A: q=0.001(99.9 efficiency of extraction) V1=45ml, V2=5ml K=14

Q: Describe the preparation of a 45.0 ml of 0.500 M solution of potassium permanganate solution,…

A:

Q: grams

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Q: Consider the reaction of Potassium Phosphate and Nickel (II) Bromide, where 15.00 ml of 0.7000M…

A: Given:  Volume of K3PO4 = 15 ml Molarity of K3PO4 = 0.7 M Volume of NiBr2 = 15 ml Molarity kf NiBr2…

Q: . What is the gravimetric factor of SO3 in BaSO4? 2. What is the normality of an oxidizing agent of…

A: The question is based on the concept of analytical chemistry. We have to calculate gravimetric…

Q: A solution was prepared by dissolving 3.50 g of KCI MgCl₂ 6H₂0 (277.85 g/mol) in sufficient water to…

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Q: What weight is needed to prepare solution of 0.15 N from Na2CO3 in 300 ml of distilled water. Na =…

A: The equivalent weight for the sodium carbonate, Na2CO3, is 53 g/eq.

Q: The mass of silver hydroxide that is dissolved in 150 mL of a saturated solution is ______ grams.…

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Q: What is the molar solubility of calcium carbonate (AGrxn=52.85kJ/mol) at 51.2°C in a solution…

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Q: What is Molarity of a 10.00% (v/v) acetic acid ? Density of pure acetic acid is 1.05 g/mL.

A: Given:

Q: OPIC: GRAVIMETRY SHOW THE SOLUTION The mercury in a 0.7152-g sample was precipitated with an…

A: #Q.1: Given the mass of the impure sample = 0.7152 g Mass of Hg5(IO6)2(s) precipitate formed =…

Q: om the following data calculate the normalities of the acid and base solutions: weight of pure…

A: Here, Nax 0.982=  Nbx 1ml Acid as, 0.2448105.98 =Va ×Na2.31×10-3 =Va ×Na Then, 0.84Nb =43.65-VaNa

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".