At an air-water interface, fatty acids such as oleic acid liein a one-molecule-thick layer (monolayer), with the heads in thewater and the tails perpendicular in the air. When 2.50 mg of oleic acid is placed on a water surface, it forms a circular mono-layer 38.6 cm in diameter. Find the surface area (in cm²) occu-pied by one molecule (of oleic acid M=283 g/mol).

Q: Assuming that A is 0.256, ε (L/mole-cm) is 14 500, b (cm) is 1.00, molecular weight is 300 g/mole…

A: Given data,Absorbance(A)=0.256Molar absorptivity…

Q: Soft drinks are canned under 4 atm of CO2 and release CO2when opened. (a) How many moles of CO2 are…

A: Given: Pressure of carbon dioxide= 4 atm Volume of can of soda= 355ml KH= 3.3×10-2 mol L-1

Q: A 5.17 molal aqueous nitric acid solution was prepared. (Density of nitric acid = 1.51 g/mL, density…

A: Molality = Number of moles of solute/Mass of solvent in Kg Concentration (%v/v) = 100 x Volume of…

Q: To prepare 100ml of O.2M from the stock solution (10M) we need to dilute 4ml of the stock solution…

A: Molarity is the unit of concentration of a solution, and its unit is mol/L. It is defined by the…

Q: Assuming that A is 0.458, b (cm) is 1.00, c (Molarity) is 1.2 x 10^-3, molecular weight is 300…

A: Given data,Absorbance(A)=0.458Length(b)=1.00cmMolarity(C)=1.2×10-3MMolecular weight=300g/mol

Q: Copper metal and aqueous iron (III) chloride were made to react to reduce iron to Fe2+ while…

A: Here we are required to find the mass of copper needed to react with 20.5% wt of iron (III) chloride…

Q: On a clear day at sea level on Planet Y with a temperature of 25 °C, the partial pressure of N2 in…

A:

Q: Three common compounds used in "ice melt" are magnesium chloride, calcium chloride and sodium…

A: #(a): Given that 37.45 g CaCl2 is soluble in 50.0 mL of water. Solubility is calculated as mol/L or…

Q: Describe the preparation of a 500. ml of 2.50 M solution cupric sulfate pentahydrate, starting from…

A:

Q: 1. Crude petroleum oil is generally considered to be formed from animal and vegetable debris…

A:

Q: Calculate the amount of temporary and permanent hardness of a water sample in units of Degree…

A: We have to find the temporary and permanent hardness of a water sample in units of Degree Clarke’s,…

Q: Solve the set of problems shown below with reference to the following information about ethanol.…

A: Given: The weight of the person is 70 kg. The legal limit is less than 0.05 %. The volume of water…

Q: what is the correct volume of 2.5M PhMgBr in THF is needed to completely react with 1.5ml of methyl…

A: The volume of 2.5M PhMgBr in THF is needed to completely react with 1.5ml of methyl benzoate, it is…

Q: Imagine that two 1-L beakers, A and B, each containingan aqueous solution of fructose (a nonvolatile…

A: (a) At equilibrium, the partial pressure of H2O above beaker A equals the partial pressure of water…

Q: Three common compounds used in "ice melt" are magnesium chloride, calcium chloride and sodium…

A: #(a): Solubility(S) is calculated as the moles of solute per L of the solution.  Given 37.45 g CaCl2…

Q: A solution of 75 mM tartaric acid (CaH,O6) in water is used as a standard in HPLC analysis. How many…

A: We know that 1 molar solution stands for 1 mole solute is dissolved in 1 litre solution.  Now, we…

Q: If 102.6 mL of water is shaken with oxygen gas at 1.8 atm, it will dissolve 0.0034 g O2. Estimate…

A: Henry law: This law states that the concentration of a gas dissolved in a liquid depends on the…

Q: One of the go-to health products today is rubbing alcohol. A commercial brand reports that a 1.00 L…

A: Given: Volume of solution = 1.00 L = 1000 mL                                     (Since 1 L = 1000…

Q: The pKw of ammonia in water varies with temperature as follows :θ/°C         10         15…

A: The value of  pKb is the base constant. Base dissociation constant can be given by a general…

Q: Given the following information, how would you calculate the partial pressure of toluene vapor?

A: The Henry’s law is given below.

Q: What is the normality of Na2S2O3 solution where 25.11mL  of it is equivalent to 213.46mg of K2Cr2O7?

A: Normality = no. of equivalents ÷ volume no. of equivalents= moles × n-factor n-factor of K2Cr2O7 = 6

Q: The normality of 6 M H2SO4 is equal to 16 12 8. 6. O O O

A: The molarity of an acid or base can be converted to normality by multiplying the molarity by the…

Q: How many moles of solute particles are present in 1.64 mL of 0.458 M K2SO4?  (the answer is 2.25E-3…

A:

Q: c. You want to bathe in warm, not cold, soda because you like all those bubbles wafting into your…

A: From the expression: π=iMRT π is the osmotic pressure, M is the concentration, R is universal gas…

Q: A certain organic compound O has a solublity in hexane of 0.191 ml. t 10. "C. Calcuiate the mass of…

A: Given, 500 mL of hexane. Solubility of compound O in hexane is 0.191 g/mL at 10 oC. Thus, at…

Q: Water at 20.0°C when the water is saturated with air, in which PN2 equals 593 torr and Po2 equals…

A: Introduction :  According to the Henry Law at a constant temperature the solubility of a gas in a…

Q: How many grams of sucrose (C12H22O11) are in 1.60L of a 0.829 M sucrose solution? Express the mass…

A: Molarity : It is the number of moles of Solute dissolved per litre of theSolution . It is…

Q: The maximum amounts of lead and copper allowed in drinking water are 0.015mg/kg for lead and…

A: Given : Concentration of lead = 0.015 mg/Kg  And concentration of copper = 1.3 mg/Kg Assuming 100 g…

Q: he picture is 1.)A   1B.) If DHsolution for dissolving DMSO in methanol is negative, what does…

A: Enthalpy of a solution is the heat  absorbed or evolved during its formation by mixing a solute in a…

Q: A river pollutant is found to have a concentration of 0.0031 % m/v. If the density of the river…

A: Given  %(m/v) = 0.0031 %  density of solution = 1.183 gram/mL  Concentration of the pollutant in ppm…

Q: 6.30 L of 0.262 M NaOH from the concentrated commercial reagent [50% NaOH (w/w), sp gr 1.525]. Take…

A:

Q: Normality of 100 mL of 1.17% (w/v) CaC12 is . .

A: Normality is defined as the gram equivalent of solute dissolved in a liter of solution. The formula…

Q: You are given a 27 % (w/v) solution of psicose.                                                Molar…

A: Given, Note: 1 μmoles = 10-6 moles moles of psicose = 450 μmoles = 450 × 10-6 moles % (w/v) of the…

Q: In the following reaction calculate 1 point and find the normality when it is 1.0 M H3PO4? Given…

A:

Q: What is the normality of a solution of H2SO4 if it has a specific gravity of 1.84 and contains 95.0%…

A: Normality = Number of gram equivalents/Volume of solution in L Number of gram equivalents =…

Q: Prepared 1 M of NaCl solution in volume ?100 ml, Mwt is 58.5 0.585 gm. O 5.85 gm. O 58.5 gm. O

A: Given Data  :  1. Concentration of NaCL = 1 M  2. Volume = 100 mL                     = 100 ÷1000 =…

Q: Suppose the rate of evaporation in a hot, dry region is about 2m per year, and the seawater there…

A: Given,Rate of evaporation = 2 m per yearSalinity of seawater = 35 pptYield of NaCl = 90 %Area of…

Q: Concentration of solutions that involves liquid solute and solvent uses with an equation: Jm AS…

A: A question based on concentration of solution concept, which is to be accomplished.

Q: 4 a)The mole fraction of iron(III) nitrate, Fe(NO3)3, in an aqueous solution is 6.42×10-2 . The…

A: The composition of a mixture can be expressed in different units like mole fraction, mass percent,…

Q: Exhaust gas from an automobile contains air and 10‐5 mole fractions of COin air at 25 degC and 1.2…

A: Since you have posted multiple questions as per guidelines we can solve only one per session. If you…

Q: What is the concentration of O2 in freshwater? Air temperature= 295.65 K.  Air pressure = 1…

A: Given: Henry's constant of O2 = 1.3 X 10-3 mol/Kg.bar. Total pressure of air = 1 bar And mole…

Q: Osmotic pressures are often reported in units of atmospheres or mm Hg. The latter implies that the…

A: One torr is approximately equal to the pressure required to raise the column of mercury by 1 mm.…

Q: A solution was prepared by mixing benzene (C,H6) and carbon tetrachloride (CCL4). Given that the…

A: Mole fraction of a species is the number of moles of that species divided by the total number of…

Q: much carbon dioxide gas (mole percent) is dissolved in a bottle of sparkling water if the…

A: According to Henry's law,P=KH​*SS is the solubility in moles per litreKH​ is the henry's law…

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.