Most fish need at least 4 ppm dissolved O2 in water for survival.(a) What is this concentration in mol/L? (b) Whatpartial pressure of O2 above water is needed to obtain4 ppm O2 in water at 10 °C? (The Henry’s law constant forO2 at this temperature is 1.71 x 10-3 mol/L-atm.)

Q: What is the solubility of carbon dioxide (in units of grams per liter) in water at 25 °C, when the…

A: Solubility = pressure * KH Pressure = 208 mm of Hg= 0.274atm Solubility = 0.274 ×3.36×10-2 = 0.92…

Q: How many grams is required in preparing 2M of NaOH in 2/3 Liters of solution. (mwt of NaOH is 40…

A: Molarity is a concentration term for a solution. The molarity of the given solution is defined as…

Q: What are the mole fractions of H 3Po4 and water in a solution of 14.5 g of H3 PO4 in 125 g of water?

A:

Q: freezing point

A: Moles of NaCl = given mass of NaCl / molar mass of NaCl                           = 21.2 g /…

Q: In which mixture do you expect to find ion–dipole forces between solute andsolvent to exist: CH3OH…

A: Since CH3OH is a covalent compound and hence does not have any ion in it. Hence it can not show…

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: Sample of water with the mass of 1000 g is saturated with 6.80 g of hydrogen selenide gas at 25°C.…

A:

Q: calculate the osmotic pressure in atm of a soultion with a voulme of 401.6 mL that contains 7.1…

A: Data given is Volume=401.6 mL = 0.4016 L And mass given=7.1 gm Temperature given=158.9 K Let's…

Q: 4. Assuming complete ionization of the solute, what would one expect the boiling point of a solution…

A: The mass of water is 125 g which is equal to 0.125 kg. The number of moles of solute present in the…

Q: How many grams of glucose (C6H12O6) would you need to prepare 2.0 l of 2% glucose solution?

A: %(w/v) strength = mass of solute (in gram) ×100volume of solution (in mL)  2 = mass of solute (in…

Q: The molarity of saturated solution of Ammonia at 90 C is O a. 5.000 O b. 0.588 O c. 6.100 O d. 5.880

A: Molality = number of moles of solute ÷ volume of solution in litre

Q: If 50g of NH4Cl is put into 100g of water at 60 deg C is the solution ? Is it saturated or…

A: In this question, we will determine that 50g NH4Cl is saturated or unsaturated or supersaturated.…

Q: What volume of 0.600 mol/L CuSO, 5H,O solution is required to prepare 75.0mL of 0.400 mol/L…

A:

Q: Water softeners often replace calcium ions in hard water withsodium ions. Because sodium compounds…

A:

Q: 47 g of NH3 are dissolved in 50 g of water at 20 deg C. Is the solution unsaturated or saturated or…

A: In this question, we want to determine Ammonia NH3 Solution is saturated or unsaturated or…

Q: How many grams of glucose (C6H12 O6 ) would you need to prepare 2.0 L of 2% glucose solution (M/V)?

A: Given data contains, Mass/volume percent of glucose is 2%. 2% (m/v) means 2g of glucose in 100mL of…

Q: What is the solubility of argon (in units of grams per liter) in water at 25 °C, when the Ar gas…

A:

Q: What partial pressure of C2H6 gas (in mm Hg) is required to maintain a solubility of 4.00×10-² g/L…

A: Given data: Solubility of C2H6 in water = 4 x 10-2 g/L KH for C2H6 = 1.94 X 10-3 mol/L atm Formula…

Q: 5. How does the solubility of oxygen in water changes with temperature? * O (a) Increase with…

A: Tempareture is inversely dependent on solubility of a gas in liquids .As the temperature increases…

Q: Calculate the percent by mass of potassium nitrate in a solution made from 45.0 g KNO3 and 294 g of…

A: Mass of solute (KNO3) = 45.0 g Mass of solvent (H2O) = 294 g

Q: 6.) Which is the mole fraction of X in a 0.05560 m aqueous X solution? A. 0.999 B. 0.101 C. 0.00100…

A:

Q: How would you prepare 425g of an aqueous solution containing 2.40% by mass of sodium acetate…

A: Given: The mass % of sodium acetate (NaC2H3O2) solution, =  2.40%

Q: 1. How many grams of table salt must be added to half a liter of water to raise ita boiling point by…

A: Depression in freezing  point = ∆Tf= 15oC ∆Tf= Kf X molality Kb= molal elevation constant of water…

Q: What volume of water, in mL, is needed to dissolve 0.72 mg of hydrogen gas (2.01588 g/mol) when the…

A: Given: Henry's constant = 7.8×10-4 M/atm. Partial pressure = 1.6 atm

Q: The solubility of CO2CO2 gas in water is 0.15 g/(g/(100mLmL) at a CO2CO2 pressure of 760 mmHgmmHg.…

A: We have given that,  S1 = 0.15 g/ (100 mL) = 0.0015 g/mL,    At P1 = 760 mm of Hg = 1 atm  S2 = ? (…

Q: The Henry’s law constant for O2 is 1.3 × 10−3 M/atm at 25 °C. What mass of oxygen would be dissolved…

A: Given: Henry Law Constant for O2 =1.3 x 10-3 M/atm  Volume of aquarium= 40.0 L Atmospheric pressure…

Q: What is the solubility of helium (in units of grams per liter) in water at 25 °C, when the He gas…

A:

Q: An aqueous solution of 1.00 M ammonia (NH3) has a density of 0.900 g/mL. What is its concentration…

A: Aqueous 1 M ammonia solution has a density of 0.9 g/ml. To calculate molality, moles of solute and…

Q: What is the boiling point of a solution of 0.186 g of glycerol, C3 Hs O3, in 20.0 g of water? For

A: ∆Tf=kf ×m and  ∆Tb=kb ×m Where  ∆Tf = depression in freezing point ∆Tb= Elevation in Boiling point m…

Q: 4. If an aqueous solution of a non-volatile, non-electrolyte freezes at - 1.28°C, what is its…

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: What is the solubility of ethane (in units of grams per liter) in water at 25 °C, when the C,H6 gas…

A: Convert unit of temperature into K and Pressure into atm:

Q: A container is divided into two compartmentsby a membrane that is fully permeable to water and small…

A:

Q: 12. Calculate the freezing point of 1.5 moles of C6H1206 dissolved in 1kg of water?

A: The molality of the given solution is calculated using equation (1). In this equation m represents…

Q: What is the mole fraction of 1.8 g glucose (C6H1206) in 90 g of water?

A:

Q: What is the concentration of argon (in units of grams per liter) dissolved in water at 25° C, when…

A: Given : Partial pressure of Ar = 249 mm Hg And K for Ar = 1.40 X 10-3 mol/L.atm Since 1 atm = 760 mm…

Q: You are asked to make a aqueous solution of Calcium Chloride, CaCl2 If you add 1 grams of CaCl2to…

A: Osmotic pressure expression-: π = CRT Here  Pi = osmotic pressure in atm C  = concentration in mol/L…

Q: What is the molality of 14.5 g of MgSO4 in 285.5 mL of water at 40 °C?

A: given mass of MgSO4 = 14.5 g volume of water = 285.5 ml

Q: Which of the following gases (in different conditions) does have the greatest solubility in water at…

A: Solubility of a gas depends on the following factors: 1) Pressure Solubility ∝Pressure   2)…

Q: What mass in mg hydrogen gas,(2.016 g/mol) is dissolved in 3.82×102 mL of water of water when the…

A: Given : Henry's constant = 7.8×10-4 M/atm. Volume =  3.82×102 mL  Mass of hydrogen gas = ?

Q: What pressure of carbon dioxide is required to keep the carbon dioxide concentration in a bottle of…

A: given Concentration = 0.12 M

Q: What molality of N a Cl is required to lower the freezing point of water to -10.0 degrees C? Use…

A: The freezing point depression is observed after the addition of solute particles into a solvent,…

Q: 5d. Comparing C,H3 (1) and C;H;O (1), which would we expect to have the higher boiling point? (а)…

A: The boing point is higher for the compound with strong intermolecular force.

Q: What partial pressure of O2 gas (in mm Hg) is required to maintain a solubility of 2.50×10-2 g/L in…

A: Mass of O2 = 2.50 × 10-2 g  KH for O2  = 1.28 × 10-3 molL atm

Q: How many grams of carbon dioxide gas are dissolved in a 1 L bottle of carbonated water if the…

A: Henry's law states that the partial pressure of that gas above the liquid is directly proportional…

Q: What is the ośmotic pressure, in atm, of a solution made from 22.3 g of methanol (MM = 32.04 g/mol)…

A: The formula for osmotic pressure (π) is π = i*CRT Where i = Van't Hoff factor C = molarity(mol/L) of…

Q: Urea, (NH 2 ) 2 CO, has been used to melt ice from sidewalks since the use of salt is harmful to…

A: Depression in freezing point - Depression in freezing point is a colligative property which results…

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.