When 71 g of Na2SO4 (FW 142 g/mol) is dissolved in 0.250L of water (MW 18.02 g/mol), what is the mole fraction of SO,2" ions in the solution? (density of water = 1.00 g/mL) (Answer with two sig.figs) O 0.11 0.036 0.035 0.033

Q: Suppose you add 2.2 g of table salt (NaCI) and 3.4 g of potassium chloride (KCI), a table salt…

A: The molar mass of NaCl is  58.44g/mol The molar mass of KCl is 74.55g/mol The moalr mass of water =…

Q: What is the mole fraction of sucrose when 433 g sucrose C12H22011 (molar mass 342.3 g/mol) is…

A: Mole fraction of sucrose =it is the ratio of  number of moles of sucrose to the total number of…

Q: By how much does the freezing point decrease when 553 g of Na,CO, is dissolved in 750 g of water?…

A: Na2CO3 dissolves in water and breaks in 3 ions of 2 Na+ and CO32-. So the value of i is 3.

Q: A soft drink is made by dissolving CO2 gas at 3.60 atm in solution at 20oC. What amount (in moles)…

A:

Q: The Henry’s law constant (kH) for O₂ in water at 20°C is 1.28X10⁻³mol/Latm. (a) How many grams…

A: According to the Henry’s Law: Solubility of O2 in 1 L = 1.28×10-3 mol Solubility of O2 in 2.5 L can…

Q: A solution is made by dissolving 46.8 g of glucose (M. wt = 180) in 117 g of water (M. Wt 18). The…

A: Answer: option a: 0.96 is the mole fraction of water.

Q: The diving atmosphere used by the U.S. Navy in its undersea Sea-Lab experiments consisted of 0.036…

A: Given: Mole fraction of O2 = 0.036 mol. Mole of fraction of N2 = 0.056 mol. And mass of He = 8.13 g.…

Q: Water treatment plants commonly use chlorination to destroy bacteria. A byproduct is chloroform…

A: Water treatment plants commonly use chlorination to destroy bacteria. A byproduct is a chloroform…

Q: Hydrogen gas has a Henry's law constant of 7.8 x 10-4 mol/kg bar at 25 degrees C when dissolving in…

A: Given: Henry's law constant, KH = 7.8 ×10-4 mol/kg.bar           Total vapour pressure = 1.00 bar…

Q: An aqueous solution is prepared by diluting 4.20 mL acetone (d = 0.789 g/mL) with water to a final…

A: Volume of acetone is 4.20 mL. Density of acetone is 0.789 g/mL. Density of solution is 0.993 g/mL.…

Q: What would be the saturation concentration (mole/L) of oxygen (O2) in a river in winter when the air…

A:

Q: The Henry’s law constant (kH) for O2 in water at 20°C is 1.28 x 10-3 mol/L⋅atm. (a) How many grams…

A: Given: The Henry's law constant for water = 1.28×10-3 mol/ L.atm Volume of water= 2.50L

Q: A solution made by dissolving 9.81 g of a nonvolatile nonelectrolyte in 90.0 g of water boiled…

A: It is given that 9.81 g of a non-volatile solute is dissolved in 90 g of water and it boils at…

Q: At 25 °C the partial pressure of carbon dioxide in a can of soda is 5.00 atm. The Henry's Law…

A: Given Pressure = 5 atm Henry law constant = 3.3 × 10-2 M atm-1  Molar mass = 44 g/mol Volume = 450…

Q: Question attached

A: The atmosphere consists of 78.1% N2 and 20.9% O2 by volume Henry's law constant for O2 is 1.3 x 10-3…

Q: solution is made using 197.5 g of water (MM=18.02 g/mol) and 120.0 g of ethanol(MM=46.07 g/mol).…

A: Given that: Mass of water= 197.5g Molar mass of water = 18.02g/mol Moles = given mass ÷ molar mass

Q: Please  help. Need directions on how to complete.

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Q: Ascorbic acid 1vitamin C, C6H8O62 is a water-soluble vitamin.A solution containing 80.5 g of…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: What is the percent by mass of NaCl in a 100 g of solution that contains 0.390 mol of NaCl. At. wt.…

A: Percent by mass of NaCl Is calculated by calculating mass of NaCl.

Q: Calculate the mass of O, that is dissolved in the water inside a 100 L home aquarium at 297 K?…

A: Given data,Volume of water=100LAtmospheric pressure=1.01barKH=1.33×10-3molL-1bar-1Molar mass of…

Q: In a solution of naphthalene in toluene, the mole fraction of naphthalene is 0.200. What is the…

A:

Q: How does Sb2(S O4)5(s) break up in solution? Write subscripts and superscripts as normal numbers and…

A: When Sb2(SO4)5 is dissolved in water it forms an aqueous solution and gets dissociated into its…

Q: Most fish need at least 4 ppm dissolved O2 in water for survival. (a) What is this concentration in…

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Q: Calculate the molarity (M) of 34% aqueous H3PO4 solution (d=1.2g/ml). (P:31, O:16 H:1 g/moles)

A: 100 g of solution contains 34 g H3PO4. Density of solution = 1.2 g/mL=1200g/L   [ 1mL=10-3L] Now…

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A: A numerical problem based on Henry's law, which is to be accomplished.

Q: What is the freezing point of a solution prepared from 53.3 g ethylene glycol (C2H6O2) and 86.4 g…

A: Given: Mass of ethylene glycol (C2H6O2)=53.3 g Mass of water=86.4 g=0.0864 kg Kf of water =1.86°C/m.…

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A: Given: Temperature = -161°C Mole fraction of water (χwater) = 6.0×10-5 Volume of solution (V) = 1.00…

Q: What mass of cesium bromide must be added to 0.500 L of water (d = 1.00 g/mL) to produce a 0.422 m…

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Q: how many moles of water does this contain? (Assume a water

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Q: solution is made using 179.1 g of water (MM = 18.02 g/mol) and 120.0 g of ethanol (MM = 46.07…

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Q: A. 990 B. 980 °C C. 98.0 °C D. 9.80 °C 16. A solution made by dissolving 9.81 g of a nonvolatile…

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Q: 8) Calculate the %(w/w) of solute in the following solutions. Hint find solution mass. a)11.5g of…

A: Formula used --- %(w/w)=mass of solute×100%/mass of solution

Q: • Part A Calculate the mass of O, that is dissolved in the water inside a 190 L home aquarium at 302…

A: Given : volume = 190 L Temperature = 302 K  Pressure = 1.01 bar  Henry's constant = 1.22 × 10-3 mol…

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Q: An aqueous solution of CaCl2 weighs 6.6 kg. The solution has 7.5 moles of CaCl2 present in it. The…

A: Given: An aqueous solution of CaCl2 weighs 6.6 kg. The solution has 7.5 moles of CaCl2 present in…

Q: How does Sb3(P O3)5(s) break up in solution? Write subscripts and superscripts as normal numbers and…

A: Interpretation: The ions of Sb3(PO3)5 compound in the solution is to be determined.

Q: 5-A solution of common salt in water is prepared by adding 30 g of salt ( CaCl2 ) to 100 g of water,…

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A: Solution -

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Q: (1) How many grams of K2SO4 are contained in 50 mL of 0.200 M? (2) How many millimoles of K2SO4 are…

A: When one mole of any compound is dissolved in 1000 ml of solution is called the 1molar solution .

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A: a) Given : Henry's law constant, KH for O2 in water at 20 oC = 1.28 X 10-3 mol/L.atm Partial…

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A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.