Respiratory problems are treated with devices that deliver air with a higher partial pressure of O₂ than normal air. Why?

Q: How many grams of Potassium Chlorate must be used to prepare 500 mL of a 0.2M solution? o 61.25 g o…

A: Given, Concentration of potassium chlorate solution = 0.2 M = 0.2 mol/L Volume of the solution = 500…

Q: What is the theoretical oxygen demand in liters of air for a 50 mg/L solution of acetone, C3H6O to…

A: The acetone oxidation: C3H6O + O2 = CO2 + H2O balance C3H6O + 4O2 = 3CO2 + 3H2O Assume a basis of 1…

Q: The solubility of nitrogen gas is 1.90 mL/dL of blood at 1.00 atm.What is the solubility of nitrogen…

A: The explanation is given below-

Q: The concentration of glucose in blood is usually about 0.10%(w/v). If 7.0 L of blood are in an…

A: The percentage weight by volume (%w/v) of a solution is one of the concentration terms used to…

Q: How does this pressure dependence account for the bubbling that occurs upon opening a can of soda?

A: Solubility is defined as the amount of gas that is present dissolved in a solution. As per Henry's…

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: 1.) If I have a gas with a pressure of 0.800 atm, what is its pressure in mmHg? 2.) If 10. g of CO2…

A: 1)  given  Pressure (P) = 0.8 atm                 1 atm 760 mm Hg Pressure in (mm Hg) = 0.8×760 =…

Q: What mass (in grams) of sodium nitrate must be dissolved in 0.1151 kg of water to prepare a solution…

A: Given : Mass of water = 0.1151 Kg = 115.1 g…

Q: What would be the freezing point, in degree Celsius, of 3.8 m aqueous solution of Sc(ClO 4 )3? k f…

A: Molality of solution (m) = 3.8m Freezing point (Kf) = 1.86 C/m Freezing point (T) = ?

Q: If the partial pressure of O2 is 38.mmHg , the mass of O2(in mg) that can dissolve in 1.00L water at…

A: Given: Pressure = 38 mm Hg Convert mm Hg into atm as follows. Volume = 1.00 L Temperature = 25…

Q: 4. Calculate the molar concentration of oxygen in water at 25°C for a partial pressure of 0.22 atm.…

A: Given data :

Q: How many mL of0.75% (w/v) KCl (potassium chloride) solution can be made from 10 g of KCl?

A:

Q: 5.. 3- Calculate the weight/ volume percent of solution prepared by dissolved 0.025g of AgNO3 in…

A: Mass of AgNO3  used = 0.025 gram Volume of water = 500 mL To find :- weight/volume percent

Q: What is the freezing point of a solution of 10 grams of glucose, C6H12O6, and 1500 g of water?

A: Freezing point of a solution is its colligative property which is dependent upon the number of…

Q: 2. What is the molality of a solution made by dissolving 12.5 g NaCl in 1 L of H2O?

A: Given,The mass of NaCl = 12.5 gVolume of the solution = 1 LConversion of grams of NaCl into moles: -

Q: What is the osmotic pressure (in atmospheres) of a solution that contains 14.0. grams of propyl…

A: Osmotic flow is defined as the movement of solute between the solution containing the solute and the…

Q: A 12% w/w sodium chloride solution is prepared by dissolving enough of the salt to give 200.0 g of…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: What is the osmolarity of a 3.3 % w/v Na3PO4 solution?

A: Since osmolarity is defined as the =  moles of ions / volume of solution in L Since 3.3 % w/v Na3PO4…

Q: How many kilograms of H 2 O must be added to 75.5 g of Ca(NO 3 ) 2 to form a 0.500 m solution ?

A: GIVEN: To solve:Kilograms of water added to form 0.500 M solution? Solution:As we know,

Q: What is the molarity of a 3.00% (m/v) solution of C13H18ClNO?

A: Since %(m/v) is defined as  % (m/v) = mass of solute in g X 100 / volume of solution in mL Assuming…

Q: 3a. What is the Molarity of a solution made by dissolving 7.65g Ca(OH)2 in 750.mL solution? 3b. In…

A: 3a. We know that molarity = No of moles of soluteVolume of solution in litre Given, Mass of Ca(OH)2…

Q: What is the effect of pressure (ex. pouring on a glass bottle) on carbonated soda (ex. bottle of…

A: According to Henry's law as we increase partial pressure over the solution amount of dissolved gas…

Q: How many grams of Na2CO3 are needed to prepare 11.6 mL of a 1.27%(m/v) Na2CO3 solution?

A:

Q: What is the osmotic pressure (in atm) of a 0.015 M calcium chloride solution at 28 °C? O 0.4 O 0.7 O…

A: Given, Concentration of calcium chloride solution (C) = 0.015 M = 0.015 mol/L Temperature (T) = 28°C…

Q: Calculate the freezing temperature of a solution where 144 grams of C6H1206 were dissolved in 1500 g…

A: Depression in freezing point numerical.

Q: If an aqueous solution is 2.02% (w/v) in magnesium nitrate, Mg(NO3)2, what is the osmolarity of the…

A: The formula of osmolarity is given by, Osmolarity=Molarity×n(number of particles of solute on…

Q: What is the freezing point of 2.47 m solution of Napthalene in Benzene? Kf= 5.12° C/ms The…

A: Solution is made up of two components which are solute and solvent. Solute is present in the minor…

Q: What is the freezing point of a 10% by mass solution of ethanol in water? Kf H2O = 1.86 °C/m

A:

Q: Calculate the Normality of a solution of 0.25 gm/L H3PO4? *

A: Solution- 1 mol of the H3PO4 is the 3 moles  of the H- ionsin H3PO4 Number of the H+ that produces…

Q: A solution of CsF in water has XC$F = 0.0500. What is the molality? %3D O 2.60 m CsF O 5.26 m CsF O…

A:

Q: Which solution has the highest boiling point? O 0.40 M CUSO4 O 0.40 M CH3OH O 0.40 M MgCl2

A: We have to find here that which of these three has the highest boiling point? We can discuss it as…

Q: What is the osmotic pressure of a 0.253 M solution of MgSO4 at 17.12 °C?

A:

Q: What is the boiling point of a 1.8 m Ca(NO3)2 solution?

A: The boiling temperature, Tb, of a 1.8 m Ca(NO3)2 solution is calculated as shown in equation (1)…

Q: What is the freezing point of an aqueous 1.22 molal KCl solution? (Kf = 1.86°C/m)

A: Given data: The molality of KCl solution m=1.22 m. Depression in freezing point constant…

Q: You have prepared 0.50 m solutions of the following solutes. Please order the solutions of the…

A: When NaOH dissolves in water, it dissociates as: Since it dissociates into two ions, thus van’t…

Q: what is the osmolarity of a .20M solution of K2S?

A: Osmolarity: Total solute concentration within a specific volume of a Solvent expressed in Osm/L.…

Q: Explain how you would prepare 150g of a 12.25% (w/w) of NaCl solution

A: Given  %(w/w) = 12.25 %  Mass of solution = 150 gram  Mass of NaCl = ?

Q: At 0 °C and 1.00 atm, as much as 3 g of O2 can dissolve in 1 L of water. At 0 °C and 1.7 atm, how…

A: At 0 °C and 1.00 atm, as much as 3 g of O2 can dissolve in 1 L of water. At 0 °C and 1.7 atm, grams…

Q: What is the mole fraction of solute in a 3.66 ? aqueous solution?

A: Mole fraction of solute in a 3.66 m aqueous solution has to be calculated, Formula used: Mole…

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: 4. Calculate the molar concentration of oxygen in water at 25°C for a partial pressure of 0.22 atm.…

A: The formula used is:-  C = KH P  Where C = concentration  KH = Henry's constant P = pressure

Q: Calculate the weight of solid NaOH needed for the preparation of 500ml of 0.25N NaOH solution

A:

Q: How many grams of galactose, C6H12O6 (MM=180.156 g/mol) are necessary to prepare 150 mL of each of…

A:

Q: . Calculate the freezing point of 0.250 m aqueous solutions of the following: a. KCl b. CaCl2

A: Given: Molality of KCl = 0.250 m Molality of CaCl2 = 0.250 m Freezing point of water = 0 oC Molal…

Q: What is the freezing point of a solution prepared by dissolving 5.84 g Na2SO4 in 250.0 g H2O?

A: ∆T=i.Kf.m          Because,         ∆T=Tsolvent-Tsolution         Therefore,…

Q: Assuming ideal solution behavior, how many liters of HCl gas, measured at 30.0 °C and 745 torr, are…

A: Molarity of a solution = Number of moles of solute/Volume of solution in L For an ideal gas: PV =…

Q: What is the mole fraction of 1.2g of NaHCo3 dissolved in 225g of water?

A: Let the number of moles of sodium bicarbonate and water be x and y respectively. The molar mass of…

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.