. A concentrated perchloric acid solution is 65.8% HClO4 by mass and its density is 1.68 g mL−1. What volume (in litres) of the concentrated perchloric acid solution is needed to make 1.81 L of 2.62 mol L−1 HClO4(aq)?

Q: A chemist prepares a solution of zinc oxalate (ZnC₂04) by measuring out 3.94 mg of zinc oxalate into…

A:

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A: Molarity can be determined using the formula : Molarity = Moles of Solute/Volume of Solution(in L)…

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A:

Q: Consider the following: you mix 9.90 mL of CHC13 (d = 1.492 g/mL) and 5.20 mL of CHBr3 (d = 2.890…

A: total volume = 9.90 + 5.20= 15.10 mL mass of CHCl3 = 1.492 x 9.90 = 14.77 g mass of CHBr3 = 2.890 x…

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Q: A 0.660 ? aqueous solution of KBr has a total mass of 77.0 g. What masses of solute and solvent are…

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Q: A chemist prepares a solution of magnesium fluoride (MGF2) by measuring out 0.026 umol of magnesium…

A: 1micro mole = 10^-6 mole 1L = 1000ml

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A:

Q: A chemist prepares a solution of nickel(II) chloride (NiCl,) by measuring out 4.2 umol of nickel(II)…

A: No. of mol of NiCl2 =4.2 μmol Conversion of μmol to mol: Conversion of mol into mmol:

Q: Automobile batteries are filled with an aqueous solu­ tion of sulfuric acid. What is the mass of the…

A: The mass of sulfuric acid has to be given. Density: A measurement of mass per unit volume.

Q: calculate volume H2=Volume displaced water

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Q: A chemist wants to make 5.5 L of a 0.330 M CaCl2 solution. Part A What mass of CaCl2 (in g) should…

A: Generally molarity is calculated by using following equation.

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A: Molarity is defined as the amount of solute expressed in the number of moles present per liter of…

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A: Answer-1 Specific gravity is the ratio of density of a substance with the density of water. Since,…

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Q: A solution of 20.91 % by weight H,SO, has a specific gravity of 1.150. What is the normality of this…

A: We have to find normality of solution

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A:

Q: When 35.0 grams of KBr are dissolved in 245 grams of water, an expression for the resulting solution…

A: Answer is  a) 35.0 g KBR per 280 g solution

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A: Please find the attached file for explanation.so V2 is the volume of stock solution taken to make…

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A: The values are given as follows:

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Q: The volume of seawater on Earth is about 3.3 x 108 mi3. If seawater is 3.5% sodium chloride by mass…

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Q: A 0.9% (weight in grams/volume in mL) solution of sodium phosphate is made by adding _______ grams…

A: 0.9% (weight in grams/volume in mL) solution of sodium phosphate is made by adding 18 grams of…

Q: In which scenario is water the solvent? a. Seven drops of water added to 27.5 g of salt b. 12.8 mL…

A: Given, which scenario, water act as solvent?

Q: 7. A 525.0 mL sample of 5.50 M sulfuric acid has a density of 1.49 g/mL. Express the concentration…

A: Mass percentage = 36.20 %

Q: What is the maximum amount of silver in grams that can be plated out of 4.8 Lof an AGNO, solution…

A: Given volume of solution = 4.8 L density of solution = 1.01 g/ml

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Q: How many mL of liquid mercury with a density of 13.6g/mL must you dispense to have 1.56 x 10-3 mol

A:

Q: A chemist samples a river's water to measure the amount of fertilizer runoff from the area farms. In…

A: PPM and the PPB are units applied in atmospheric chemistry to represent the concentration of the…

Q: Knowing that 1 calorie = 4.184 joules and 1kWh = 3.6 x 106 Joules, convert the following: 2739…

A: Given: 1 calorie = 4.184 joules 1kWh = 3.6 x 106 Joules Toconvert: 2739 teraWh into nanocalories.

Q: a density of 1.30 g/mL. What mass, in kilograms, of NaOH is in 6.00 L

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Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: The mass of water in the pool is calculated as,

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Q: A chemist must dilute  16.6mL  of  2.03M  aqueous zinc nitrate  ZnNO32  solution until the…

A: Given data contains, Initial volume is 16.6 mL. Initial molarity is 2.03 M. Final volume is x. Final…

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Q: When 25.0 grams of NaCl are dissolved in 675. grams of water, an expression for the resulting…

A: Given: Weight of NaCl = 25.0 g Weight of water = 675 g

Q: A certain solution is 4.40% by mass in calcium carbonate (CaCO3) if the density of the solution is…

A: Given that: Mass percent of calcium carbonate = 4.40% Density of the solution = 1.02 g/mL Volume of…

Q: A chemist prepares a solution of potassium iodide (KI) by measuring out 3.0 x 10 umol of potassium…

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Q: A chemist prepares a solution of mercury(I) chloride (Hg,Cl,) by measuring out 0.00116 pmol of…

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Q: A chemist prepares a solution of mercury(I) chloride (Hg,CI,) by measuring out 0.389 mg of…

A: given :-  mass of Hg2Cl2 = 0.389 mg  volume of solution = 100. mL  To calculate :-  concentration of…

Q: One student measured 25 cm3 of a 1.06 g / dm3 sodium carbonate solution. Calculate the mass of…

A: Given Volume of sodium carbonate = 25 cm3  Density of sodium carbonate = 1.06 g/dm3

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A: Given: Mass of K2Cr2O7 = 20 g. Volume of solution = 150 mL = 0.150 L…

Q: One of the common intravenous fluids, called physiological saline, is a homogeneous mixture of NaCl…

A: Given: The mass % of NaCl in thephysiological saline, =  0.89% (m/m). The density of physiological…

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Q: A chemist prepares a solution of silver(I) perchlorate (AgCIO,) by measuring out 4.4 x 10 umol of…

A: Number of mol of silver (I) perchlorate (AgClO4 ) = 4.4 × 102 u mol  ...Or  because 1u (micro) =…