Assume that when you were transferring the mass of sodium chloride you measured to Test Tube 2, a smalle amount remained on the weighing paper, so that actual mass of NaCl you added to the tube was a bit smaller that the mass you thought you trasnferred. Describe how this error would affect each of the following values. a. The freezing poing depression that you measured. b. The motality that you calculated from your measurement of the freezing point depression. c. The molar mass of NaCl that you calculated from the molairty that you determined.

Q: Assuming 100% dissociation, calculate the freezing point (T;) and boiling point (7, ) of 1.94 m…

A: For electrolytes, if complete dissociation occurs then the elevation in boiling point and depression…

Q: The concentration that refers to the number of equivalence per liter of the solution is called ?…

A:

Q: Calculate the molarity and mole fraction of acetone in a 1.70-m solution of acetone (CH3 COCH,) in…

A: Given data: molality of solution = 1.70 m density of (acetone) solute = 0.788 g/cm3 density of…

Q: 2.) Find the molality, % (m/m), % (m/w) and mole fraction of the ff. solution: (A) 2.25 M HNO3…

A: %(m/m)=Mass of component in solutionTotal mass of solution*100 %(m/V)=Mass of solute Volume of…

Q: 1.0 GRAMS of an electrolyte was dissolved in 29 grams of water, the resulting solution was found to…

A: Given,Mass of the electrolyte (solute) = 1.0 gMolecular weight of the electrolyte = 179.7…

Q: Why is molality, and not molarity, used to express concentration in the equations for freezing point…

A: Molality is defined as number of moles of solute divide by mass of solvent in kilograms whereas…

Q: Do you expect the freezing-point depression constant, Kf, to change when you change the solute? When…

A: The properties of the solution that depend on the number of moles of solute are termed as…

Q: What does Parry mean when he says that Solutions must be "intersectional in nature"?

A: Interpretation- To tell about here that what does parry means when he says that solution must be…

Q: 5. The addition of 5.00 g of a compound to 250 g of naphthalene lowered the freezing point of…

A:

Q: When 4.92 g of a certain molecular compound X are dissolved in 30. g of formamide (NH,COH), the…

A: Given : Mass of compound X i.e solute = 4.92 g Mass of formamide i.e solvent = 30 g = 0.030 Kg…

Q: If the freezing point depression constant of the pure solvent is 8.08 ºC·kg solvent/mol solute,…

A: The depression in freezing point (ΔTf) of the solvent is calculated as follows:

Q: When 184. mg of a certain molecular compound X are dissolved in 85. g of formamide (NH,COH), the…

A:

Q: Find the freezing point of a 0.301m benzene solution in water. (Assuming it's highly soluble) (Use…

A: Given: Molality (m) = 0.301 molal The freezing point (pure solvent) T0 = 273 K The freezing constant…

Q: A 1.6M NaOH basic solution has a density of 1.52g/mL. Calculate the mole fraction of the solvent.

A: Given data, Molarity of NaOH = 1.6M Density of Solution = 1.52g/mL The molar mass of NaOH = 40g/mol

Q: The colligative properties of solutions depend on the total concentration of solute particles,…

A: Van 't Hoff factor: The van 't Hoff factor is the ratio between the actual concentration of…

Q: (b) How do the structures of these molecules account for these differences in solubility? Provide a…

A: The amount of a substance that goes into the solution is termed as the solubility of the substance.…

Q: 12.58 grams potassium hydroxide dissolved in 100 mL ethanol. Give the molality and (%w/w).

A:

Q: 16.) An aqueous solution of a nonvolatile solute has a boiling point of 101.9°C. Calculate the…

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

Q: Create a schematic diagram. Topic: Experiment on Molar Mass Determination Using Freezing Point…

A:

Q: Assume that when you were transferring the mass of sodium chloride you measured to Test Tube 2, a…

A: Molality = Number of mol of solute/Mass of solvent in Kg Number of mol = Mass/molar mass Freezing…

Q: Why does the freezing point of a pure solvent remain as a constant value but the freezing point of a…

A:

Q: What do you notice with the boiling point and freezing point of the different solutions? Q2. What do…

A: Introduction: The boiling point is the temperature at which the vapor pressure of liquid becomes…

Q: Calculate the freezing-point depression and osmotic pressure in torr at 25°C for an aqueous solution…

A:

Q: What is the change in the boiling point of the aqueous solution?

A: Boiling point of a solution is the temperature at which the vapour pressure of that compound equals…

Q: Calculate the amount of KC1 which must be added to 1 kg of water so that the freezing point is…

A: Kf of water is molal freezing depression constant.  To calculate what amount of KCl is added in…

Q: In regards to freezing point depression:  The original experiment calls for 3 grams lauric acid and…

A:

Q: Why is a large freezing point depression constant (Kf) advantageous when determining freezing point…

A: As we know, ∆Tf=Kf×m when determining freezing point depression, a large freezing point depression…

Q: Calculate the freezing point depression for a solution of 78.5 g toluene (C7H8) in 245 mL phenol (d…

A: Introduction: Freezing point depression: The freezing point depression is one of the colligative…

Q: Create a schematic diagram of Molar Mass Determination Using Freezing Point Depression.

A:

Q: 5. The freezing point depression of a 0.100 m M9SO4 is 0.225 ° Calculate the van't Hoff factor at…

A:

Q: Why is potassium hydrogen phthalate (KHP) used to standardize the NaOH solution instead of measuring…

A: Given:

Q: Why is molality used in freezing point depression experiments and not molarity? Omis in the equation…

A: Correct answer: m is temperature independent but M is not. Molarity (M) is temperature dependent…

Q: When 14.3 g of a certain molecular compound X are dissolved in 70. g of formamide (NH,COH), the…

A:

Q: The experimental data in the table was collected during a freezing point depression study where BHT…

A:

Q: The molecular weight of an organic compound was determined by measuring the freezing point…

A: The equation that explains the relationship between freezing point depression and molality is:

Q: When carrying out a molar mass determination by freezing point depression experiment. If a solute…

A:

Q: The freezing point of an aqueous solution of MgB was found to be 30 C Caloulte the teng Mgr solution…

A:

Q: Explain why it is the freezing point depression of a solvent does not depend on the identity of the…

A:

Q: Complete the freezing point depression table below: Mass / Volume added Added reagent Molecular…

A:

Q: mass of test tube + beaker + stir bar + solvent (g) 30.64 mass of test tube + beaker + stir bar +…

A: Given:  Freezing point of solution = 41.56 °C  Freezing point of solvent = 45.36°C  Depression in…

Q: Assuming 100% dissociation, calculate the freezing point (T) and boiling point (T,) of 2.73 m…

A:

Q: A 10.00 mL sample of ethanol is added to 250.0 mL of water in order to observe the freezing point…

A: Depression in freezing point is one of the colligative property which depends on the amount of…

Q: Why is the freezing point of a pure solvent constant, while that a solution decrease with steady…

A: The depression is a colligative property in the freezing point of a solution i.e. it depends upon…

Q: The formula for freezing point depression is AT = %3D a. Kfm O b. K/ws/mol O c. w/Ws m O d. MW/kw

A:

Q: Consider a 250mL solution composed of 25% pentane by volume and 75%n-pentanol by volume. The…

A: Components can be seoarated by simple distillation if there boiling points are quite different .…

Q: Q1. What do you notice with the boiling point and freezing point of the different solutions? Q2.…

A: Ans 1: We notice that the boiling point of solution increase with increase in concentration. While…

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.