(a) 4.95 g of NaCl dissolved in 50.6 g of H2O  % (b) 1.92 g of LiBr dissolved in 43.0 g of H2O  % (c) 24.8 g of KNO3 dissolved in 351 g of H2O  % (d) 3.9×10-3 g of NaOH dissolved in 3.3 g of H2O  %

Q: What B the true percentage of water in Backa 2H2O?

A: the molecular formula of the compound is = BaCl2 . 2H2O The percentage of water is the compound is…

Q: How many liters of 44.6N of H3PO4 are needed to prepare 750 ml of 7.4M.

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Q: Ascorbic acid (C6H8O6) is also known as Vitamin C. How many molecules of C6H8O6 does a Vitamin C…

A: Using avagadro concept we have solve this problem.

Q: how many ml of HCl 37% in weight and with a densityof 1.18 g/mL is needed to prepare 100.0 mL of HCl…

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Q: How many moles of solute are dissolved in 0.015848 kg of cyclohexane if the solution has a molality…

A: Given that, Mass of cyclohexane (solvent) = 0.015848 kg Molality of the solution = 0.542 mol/kg

Q: 6-10. What is the percent concentration of rubbing alcohol in a solution that contains 300 g of…

A: The mass of the rubbing alcohol = 300 g The mass of the solution = 500 g

Q: What is the molarity of a solution prepared by diluting 5.00 mL of concentrated HNO3 to 0.250 L

A:

Q: What is the molarity of a solution prepared by dissolving 125 g of C2H6O2 in 850 mL of water

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Q: 5. Which ionic solid is most soluble in water at 0°C? A. sugar (C12H22O11) 5. B. KNO: C. NANO3 D.…

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Q: What mass (in grams) of Mg(N03)2 is present in 145 mL of a 0.150 M solution of Mg(NO3)2 (At wt Mg…

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Q: When 71 g of Na2SO4 (FW 142 g/mol) is dissolved in 0.250L of water (MW 18.02 g/mol), what is the…

A: The mole fraction of sulphate ion can be calculated as follows

Q: Prepare 250 ml of 2.5% w/v NaCl

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Q: Ascorbic acid (C₆H₈O₆) is also known as Vitamin C. How many molecules of C₆H₈O₆ does a Vitamin C…

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Q: What is the [CH3CH2CH2NH3+] of a solution which is 0.1820 M in CH3CH2CH2NH2 and 0.1716 M in CsOH?…

A: For CsOH solution: CsOH(aq)→Cs++OH- pKb of CsOH = -1.76 Thus,…

Q: Carbon dioxide (CO2) is an important greenhouse gas with a Henry volatility constant of 3.3x…

A:

Q: Sketch a qualitative enthalpy diagram for the process of dis-solving KCl(s) in H₂O (endothermic)

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Q: The boiling point of ethanol, CH3CH2OH is 78.50 °C at 1 atmosphere and its Kbp value is 1.22 °C/m. A…

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Q: The 1875 Chamber Street fire claimed many victims. A whiskey distillery in Dublin went into flames…

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Q: What is the molarity of a 500 ml beer with an alcohol percentage of 5.8?

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Q: Will the following reaction take place? Explain. NaBr(aq) + F2(1)>

A: Given that : We have to identify whether or not the following reaction takes place.

Q: Multiple Choice 2. What is the mole fraction of NaOH in a solution that is made by dissolving 8.0g…

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Q: What percentage of water is in Na2S2O5•2h20?

A: The formula given is Na2S2O5•2H2O Hence the molar mass of compound = 2 X Atomic mass of Na + 2 X…

Q: How would you prepare 425 g of an aqueous solution containing 2.10% by mass of sodium acetate,…

A: The 425 g solution of sodium acetate, NaC2H3O2 has sodium acetate and water. The solution contains…

Q: Determine the final concentration in mol dm–3 of K+ and SO42– when the following three solutions in…

A:

Q: What are the mole fraction and the mass percent of a solu-tion made by dissolving 0.30 g of KI in…

A: Substitute 0.4 L as volume and I g/mL as the density of water in the expression of density to…

Q: How many gram of H2SO4 are necessary for the preparation of 0.175dm^3 of 6.00M of H2SO4?

A: We have 0.175 dm3 as volume , Molarity as 6 M, we have to calculate the mass of the sulphuric acid…

Q: You are required to prepare 5 L of a solution containing 1.000 x 10 mol/L of Cu2"(aq). Which of the…

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Q: How many grams of carbon dioxide gas will be dissolved in 492 mL of water at 25°C held at a pressure…

A: Consider the given information is as follows; Volume of water = 492 mL = 0.492 L       Temperature =…

Q: 3. Which of the following statement/s is/are correct? 1. 6.00 N H2C03 is equivalent to 3.00M H2CO3.…

A:

Q: A pharmacist adds distilled water to 4.00 g of a powdered drug.  The final volume of the solution is…

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Q: What is the [CH3CH2CH2NH3+] of a solution which is 0.1710 M in CH3CH2CH2NH2 and 0.1550 M in CsOH?…

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Q: How many grams of sodium hydrogen carbonate decompose to give 20.8 mLmL of carbon dioxide gas at…

A: Given reaction is: 2NaHCO3 (s) → Na2CO3 (s) + H2O (l) + CO2 (g)   Now from given reaction, 2 mole of…

Q: What is the molar concentration of a نقطتان ( 2 solution that is 4 percent K2SO4 by weight and has…

A: 4 percent by weight means 4 g K2SO4 in 100 g solution. Volume of 100 g solution = mass / density…

Q: What is the solubility of Cd3(POa)2 in water? (Ksp of Cd3(PO4)2 is 2.5 x 10-39)

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Q: A 6.21 g mixture of sucrose (C₆H₁₂O₆, 342.30 g mol⁻¹) and ethyl alcohol (C₂H₆O, 46.07 g mol⁻¹) is…

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Q: What is the partial pressure of carbon dioxide in a container that holds 5 moles of carbon dioxide,…

A:

Q: What molaity of pentane is obtained by dissolving 5g pentane, C5H12, in 245 g hexane C6H12

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Q: -3 The Henry's law constant for O2 is 1.3 x 10 mol · L. atm at 25°C. (a) What is the concentration…

A:

Q: What is the percent by mass of NaHCO3 in a solution containing 20.0 g of NaHCO3 dissolved in 600.0…

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Q: What mass of C12H22011 (sucrose) is needed to prepare 255 ml of a 0.570 M solution of sucrose in…

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Q: Compute the weight (g) of solute needed to make the solutions listed below: 1250mL of 0.85 AlCl3…

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Q: Please answer subparts A, and B A. At 40 degrees Celsius, the solubility of KNO3 is 65 g /…

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Q: Urea (NH2)2CO) is prepared by reacting ammonia with carbon dioxide according to the equation.…

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Q: When filling a volumetric flask with water, the water is added until: Select one: a. There is no…

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Q: MOLE FRACTION AND DILUTION What is the molarity of carbonic acid solution if 78 ml of 5.2M…

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Q: How many grams of Na2CO3 are needed to prepare 500cm3 of a solution containing 10.0mg of CO32- per…

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Q: What is the weight percent (w/w) of NaOH in a solution prepared by dissolving 30g of NaOH in 120g of…

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Q: What volume of carbon dioxide gas at 0.980 atm and 293 K could be made from reacting 10.0 grams of…

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Q: a) Which compound has the higher solubility in hexane (C6H14) ? - 4 line zigzag with Cl off 3rd…

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