50.00 cm3 of a 1.5784 mol.dm-3 solution of potassium hydroxide is transferred to an empty 700.00 cm3 volumetric flask. This flask is made up to the mark with distilled water and then shaken well. The concentration of the potassium hydroxide in this second flask is:

Q: How will the following situations affect the final calculation of the molarity of HC2H3O2? A small…

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Q: When treating a mixture of metals( copper and zinc) with an excess of solution of hydrochloric acid,…

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Q: Calculate the value of the equilibrium constant, Kc, for the reaction Q(g) + X(g) 2 M(g) + N(g)…

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A: Given Ksp of hydroxyapatite, Ca10(PO4)6(OH)2 , Ksp = 2.34*10-59  Given [OH-(aq)] = 5.30*10-4 M

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A:

Q: A 600.0 mg sample consist only of CaC2O4 and MgC2O4 was heated at 500°C converting the two salts to…

A: Given,Weight of sample CaC2O4 + MgC2O4 = 600.0 mgWeight of carbonate CaCO3 + MgCO3 precipitate =…

Q: Calculate the value of the equilibrium constant, Ke , for the reaction Q(g)+X(g) = 2 M(g)+N(g) given…

A:

Q: Calculate the value of the equilibrium constant, Kỵ, for the reaction Q(g) + X(g) 2M(g) + N(g) given…

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Q: Assume that the effluent water contains no carbon dioxide, 30.0 mg · L−1 as CaCO3 of Ca2+ and 10.0…

A:

Q: 4pts) 2.80g of a mixture of Barium Nitrate, Ba(NO3)2 (MM = 261.35 g/mol) and Potassium Bromide, KBr…

A: Here by gravimetric analysis, we have to determine the percentage of KBr in the mixture of Ba(NO3)2…

Q: given the Ksp of CaSO4 is 4.93 x10^-5 mol^2 L^-2, what is its solubility

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Q: 1. A 0.68 gram sample of a volatile liquid was heated to 358 K. The gas occupied 265 mL of space at

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Q: 3 Bal, (aq) + 2 Nag POq cag) 7 BalPO42 + l6 Nal (aq Cónsider the reaction of 30.0mL of Oi270m Balz…

A:

Q: Hydroxyapatite, Cao(PO4)(OH)₂, has a solubility constant of Ksp=2.34 x 10-59, and dissociates…

A: Given:Solubility constant of hydroxyapatite is  2.34×10-59.[OH−] is fixed at 3.40×10-4 M.

Q: 6. The potassium in the 3.0 ml plasma sample was determined by precipitating the potassium as…

A: #6: Given the precipitate formed by the analyte, K3PW12O40 + blank = 16.36 mg Precipitate formed by…

Q: If 12.50 mL of a KOH(aq) solution is required to titrate 0.218 g of KHP, what is the molar…

A: weight in g = 1 molmolecular weight in g×weight in g                     = Number of molsVolume in…

Q: 5) The solubility of BaCO3 is 24 mg/L at room temperature. a. What is the molar solubility and the…

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Q: A solution of Na,SO, in water is saturated at 50°C. When a saturated solution of Na,SO, is cooled,…

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Q: Which one of the multiple choice is correct? 1. What is the percent composition(by mass) of…

A: "Since, you have posted multiple questions, we will solve only first question for you as per the…

Q: What are the correct gravimetric factors for the following: Substance Weighed (A) (B) (precipitate),…

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Q: A solid sample contains unknown amounts of potassium and magnesium chloride and moisture. 1.193 g of…

A: To calculate the % by weight of potassium and magnesium chloride in the sample, we need to first…

Q: Hydroxyapatite, Ca₁0 (PO4) 6 (OH)2, has a solubility constant of Ksp = 2.34 x 10-59, and dissociates…

A: Step 1:   Step 2: Step 3: Step 4:

Q: Construct the expression for Ksp for solid Ba3(PO4)2 in aqueous solution. Ba3(PO4)2(S) 3 Ba²+ (aq) +…

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Q: One particular pungent gas is the toxic hydrogen sulphide (H2S). Hydrogen sulphide develops an odour…

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Q: Calculate the molarity of a solution that contains 324 grams of KNO3 (molar mass of KNO3 =86 g/mole)…

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Q: A 690 g of 59% strontium bromide solution is cooled from 60 oC to a certain temperature. Upon…

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Q: An aqueous solution of barium bromide has a concentration of 0.246 molal. The percent by mass of…

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Q: Calculate the formal concentration in molarity of a sodium acetate solution prepared by diluting…

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Q: A chemist receive different mixtures for analysis with the statement that it contain NaOH, NaHCO3 ,…

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Q: calculate the molarity of ethanol in this aqueous solution.

A: Volume of ethanol = 700 mL = 0.7 L Volume of water = 7 L Total volume = 7.7 L Now, Density =…

Q: Two homogeneous solutions 1.5 x 10-2 M Pb(NO3)2 and 2.5 x 10-4 M (NH4)2SO4 are combined. Does PbSO4…

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A: Answer:

Q: If 100mL of 0.481M NaSO4 are added to 100.0mL of 0.819M Pb(NO3)2, how many grams of PbSO4 can be…

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Q: Use the following data: Quantity 0.3 kg 200 ml Concentration Solution A Solution B Density 1.08 g/mL…

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Q: 1. What is the concentration (molarity) of a solution made from 0.62 moles of NaCl and 500mL of…

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Q: (a) In 20 or less of yourown words define the term “leachate”and describe how it forms.

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Q: Hydroxyapatite, Ca₁0(PO)(OH)₂, has a solubility constant of Ksp = 2.34 × 10¯5⁹, and dissociates…

A: Given:Solubility constant of hydroxy apatite =  2.34×10-59.[OH−] is fixed at 5.90 ×10-4 M.

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A: Given: Density of hydrogen peroxide solution = 1.11 g cm-3 = 1.11 g/mL Volume of H2O2 used for…

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".