Please consider significant figures. 3.1The freezing point of pure benzene is 5.50 °C, and its Kfp is -5.12 °C. kg. mol-1. A 0.546 g sample of aanimal hormone is dissolved in 15.0 g of benzene, and the solution freezes at 5.26 °C.Determine the molar mass of the hormone.(You may assume that the hormone is a non-electrolyte).3.2Estimate the osmotic pressure (in kPa) of a 0.120 M solution of Mg3(PO4)2 at 25.0 °C

Answered: Image /qna-images/answer/e35b5230-2482-4b11-be5b-41d7dbfebe56.jpg

The freezing point of pure benzene is 5.50 °C , and its Kp is –5.12 °C. kg. mol-1. A 0.546 g sample of a animal hormone is dissolved in 15.0 g of benzene, and the solution freezes at 5.26 °c. 3.1 Determine the molar mass of the hormone. (You may assume that the hormone is a non-electrolyte).

The freezing point of pure benzene is 5.50 °C , and its Kp is –5.12 °C. kg. mol-1. A 0.546 g sample of a animal hormone is dissolved in 15.0 g of benzene, and the solution freezes at 5.26 °c. 3.1 Determine the molar mass of the hormone. (You may assume that the hormone is a non-electrolyte).

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 70QRT

See similar textbooks

Related questions

Q: The normal freezing point of ethanol (CH3CH2OH) is -117.300 ºC. In a laboratory experiment,…

A: The freeing point depression is observed on the addition of solute in a solvent, which is a…

Q: The table below shows the solubility of oxygen gas in ocean water at different pressures and…

A: A question based on solutions that is to be accomplished.

Q: At 25 °C and 785 Torr, carbon dioxide has a solubility of 0.0351 M in water. What is its solubility…

A: Given: Initial pressure, = 785 torr Final pressure, = 1250 torr Initial concentration, = 0.0351 M

Q: The solubility of carbon tetrachloride (CCI,) in water at 25 °C is 1.2g/L. The solubility of…

A: To explain: The solubility of chloroform, CHCl3 is more than CCl4.

Q: Assume that the solubility of carbon dioxide gas in pop at 5oC is 0.586 g/100 mL and at 20oC its…

Q: At 25 °C the solubility of NaCl is 36.0g/100gH2O . How much NaCl can dissolve in 325 g of water?

A: Givan data: The solubility of NaCl is 36.0 g in 100 g of H2O. To find: The mass of NaCl that can be…

Q: The freezing point of pure benzene is 5.49 °C. The freezing point of a solution containing 6.582 g…

Q: Consider the solubilities of a particular solute at two different temperatures. Temperature ("C)…

A: Solubility is defined as mass of solute that could be dissolved in a solvent at a particular…

Q: The following data table indicates the solubility of a substance. By examining the data presented,…

A: Every ten degree increase decrease the solubility by 0.65mM e.g 5 degree 5.00mM solubility increase…

Q: The freezing point of water H20 is 0.00°C at 1 atmosphere. A nonvolatile, nonelectrolyte that…

Q: Use the information in the table to answer the following questions. The table indicates the…

A: Among all these questions only one question can be answered. (1) Based on the given table of…

Q: 4. The solubility of inorganic compounds (as indicated by the magnitude of their Ksp values) is…

A: The theory of Le Chatelier's is an intuition regarding chemical equilibria of reactions. It states…

Q: hat is the freezing point of a water solution with the total volume of 1.00 L, that is made by…

A: Normal freezing point of water = 00 C Density of water = 1Kg/L

Q: The solubility of oxygen in lakes high in the Rocky Mountains is affected by the altitude. If the…

A: Solubility of Gases is governed by Henry's Law S=KHP , KH= Henry Constant P= Partial pressure of…

Q: A solution of Na,SO, in water is saturated at 50°C. When a saturated solution of Na,SO, is cooled,…

Q: Some ethylene glycol, HOCH2CH2OH, is added to your car’s cooling system along with 5 kg of water. If…

A: Solution has two components. One is solute and other is solvent. When solute is added to solvent it…

Q: A solution is prepared by dissolving 14.2 g of benzene (C6H6) in 282 g of carbon tetrachloride…

A: Molality is a term used for measurement of concentration. It is the concentration of solute in…

Q: A solution of vinegar is What is the molality of acetic acid in vinegar which is 0.750 M in acetic…

A: Molality can be expressed as the number of moles of solute per kilograms of the solvent. i.e.…

Q: What is the freezing point of an aqueous PCl₃ solution made to be 0.81 m PCl₃? (Kf for water is 1.86…

A: Given : Solution is an aqueous solution of PCl3 means solvent is water and solute is PCl3. And…

Q: The initial freezing temperature of 0.13 kg of a pure solvent is 6°C. 15.0 grams of a solute with…

A: Given: Freezing point of pure solvent = 6 oC Mass of solute added = 15.0 g Molar mass of solute =…

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: Ammonia, NH3, has a solubility of 60.0 g / 100 g H20 at 25 °C. How many moles of ammonia will…

A: Given solubility of ammonia is 60.0. Molar mass of ammonia is 17g/mol. Density of water at 25°C is…

Q: The solubility of AgCl(s) in water at 25 °C is 1.33 * 10 - 5 mol/L and its ΔH° of solution is 65.7…

A: Given data contains, The solubility of AgCl in water at 25°C is 1.33×10-5mol/L. The value of ∆H° is…

Q: If the solubility of a gas is .8g/L at 5atm what is the solubility

A: Henry law tells that at constant temperature, amount of gas dissolved in liquid is directly…

Q: At 25 °C and 765 Torr, carbon dioxide has a solubility of 0.0342 M in water. What is its solubility…

Q: At what temperature do saturated solutions of sodium chloride and potassium chloride contain the…

A: The question is related to finding out the temperature of the solutions having same solubility at…

Q: At 70 °C, the solubility of an unknown solute is 65.7 g/100.0 g of water. What mass of the solute…

Q: At 25 °C, the solubility of NaCl is 36.0g/100g H20. How much NaCl can dissolve in 450 g of water at…

A: The solubility of the solution is determined by the maximum amount of solute dissolved in the given…

Q: What is the molar solubility of CaCO3 at 50°C in a solution pre- pared by dissolving 1.000 L of CO2…

A: According to Charle's law: V1/T1 = V2/T2 Given, Initial temperature T1 = 20 oC = 20+273 = 293 K…

Q: Given that the solubility of Co3(PO4)2 is 4.5 x 108 mol/L what is its Ksp value? Note: the molar…

Q: At 25 °C, the solubility of NaCI is 36.0g/100g H,O. How much NaCl can dissolve in 450 g of water at…

A: Answer :- 162 g The mass NaCl dissolved in 450 g water at 25 °C = 162 g…

Q: State your basis and show calculations. (Kf,water = 1.86 K kg mol-1) NaCl, MgCl2, and CaCO3 are…

A: Depression in freezing point or lowering in temperature because of cooling is directly proportional…

Q: 3) Camphor (CioHıs0) melts at 179.8 °C, and it has a particularly large freezing point depression…

A: At a specific temperature, when vapor pressure of any particular substance in its liquid and solid…

Q: For a 1.50 mol/kg 25°C sucrose solution in water - for the solute sucrose. For this solution, find…

A: Sucrose is a carbohydrate and its molecular formula is C12H22O

Q: A solution is made by adding 2.190 mol of sucrose, a nonelectrolyte, to 430 g of water. Calculate…

A: Given data,Moles of sucrose=2.190molesMass of water=430g=0.430KgKf=1.86oC/m

Q: Consider the three statements below. Which statement(s) is(are) true? 1. Hydration is a special case…

A: Electrostatic force of attraction is defined as attractive force held between positive and negative…

Q: Lithium chloride has a solubility of 45.80 g in 100. g of water at 25°C. Express this solubility in…

A: Given that lithium chloride has a solubility of 45.80 g in 100 g of water at 25 degree Celsius.…

Q: Cholesterol is an important compound in the body, but in excess has been implicated as a cause of…

A: Given data : Mass of cholestrol = 4.82 gms Mass of Benzene = 112 gms…

Q: The solubility product constant, Ksp, values for some fluoride compounds are given below. Use these…

A: Given, The least soluble compound in water at 25 °C from the list is:

Q: when Joseph Priestley (1733–1804) developed a method of infusing water with carbon dioxide to make…

A: According to the Le Chatelier's principle, if a system in equilibrium is subjected to change in…

Q: The solubility of CO2 in water is a function of pressure. Calculate the concentration of CO2 in…

A: The concentration of CO2 in water can be calculated using Henry's law. We would use given Pressure…

Q: The solubility of CO gas in water is 3.0 x 10-3 g/L at 20oC when its partial pressure is 1.0 atm.…

A: According to Henry's law, the solubility (s) of a gas is directly proportional to the partial…

Q: 2. What happens to the solubility of NH3 as the temperature increases? Based on this information do…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: At 25 °C the solubility of NaCl is 36.0g/100g H2O How much NaCl can dissolve in 450 g of water at…

A: The solubility is the maximum amount of solute that can be dissolved in a particular solvent. The…

Q: How is the solubility of oxygen in water affected by increasing temperature?

A: The gases are soluble in liquid and the solubility of a gas in a liquid depends on the nature of gas…

Q: Which of the following compounds is most soluble in water? Assume that all Ksp values are for…

A: Which of the following compounds is most soluble in water?

Q: The solubility of CuBr in water at 25 °C is measured to be 0.010 . Use this information to calculate…

A: Dissociation of CuBr will happen according to the equation: CuBr ⇌ Cu+ + Br- If M is the molar…

Q: Order the following solids (a-d) from least soluble to most soluble: a. SrSO4, Ksp = 3.2x10-7 b.…

Concept explainers

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

Question

Please consider significant figures.

3.1
The freezing point of pure benzene is 5.50 °C, and its Kfp is -5.12 °C. kg. mol-1. A 0.546 g sample of a
animal hormone is dissolved in 15.0 g of benzene, and the solution freezes at 5.26 °C.
Determine the molar mass of the hormone.
(You may assume that the hormone is a non-electrolyte).
3.2
Estimate the osmotic pressure (in kPa) of a 0.120 M solution of Mg3(PO4)2 at 25.0 °C

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

A gaseous solute dissolves in water. The solution process has H=15 kJ. Its solubility at 22C and 6.00 atm is 0.0300 M. Would you expect the solubility to be greater or less at (a) 22C and 1 atm? (a) 18C and 6 atm? (a) 15C and 10 atm? (a) 35C and 3 atm?
The organic salt [(C4H9)4N][ClO4] consists of the ions (C4H9)4N+ and ClO4. The salt dissolves in chloroform. What mass (in grams) of the salt must have been dissolved if the boiling point of a solution of the salt in 25.0 g chloroform is 63.20 C? The normal boiling point of chloroform is 61.70 C and Kb = 3.63 C kg mol1. Assume that the salt dissociates completely into its ions in solution.
The vapor pressures of several solutions of water-propanol (CH3CH2CH2OH) were determined at various compositions, with the following data collected at 45C: H2O Vapor pressure(torr) 0 74.0 0.15 77.3 0.37 80.2 0.54 81.6 0.69 80.6 0.83 78.2 1.00 71.9 a. Are solutions of water and propanol ideal? Explain. b. Predict the sign of Hsoln for water-propanol solutions. c. Are the interactive forces between propanol and water molecules weaker than, stronger than, or equal to the interactive forces between the pure substances? Explain. d. Which of the solutions in the data would have the lowest normal boiling point?
The freezing-point depression of a 0.091-m solution of CsCl is 0.320C. The freezing-point depression of a 0.091-m solution of CaCl2 is 0.440C. In which solution does ion association appear to be greater? Explain.
The Henry's law constant for the solubility of helium gas in water is 3.8104M/atm at 25C. (a) Express the constant for the solubility of helium gas in M/mm Hg. (b) If the partial pressure of He at 25C is 293 mm Hg, what is the concentration of dissolved He in mol/L at 25C? (c) What volume of helium gas can be dissolved in 10.00 L of water at 293 mm Hg and 25C? (Ignore the partial pressure of water.)
Which solute has the greatest effect on the boiling pointof 1.00 kg of water: 50.0 g of strontium chloride (SrCl2) or 150.0 g of carbon tetrachloride (CCl4) ? Justify youranswer.
You and your friend are each drinking cola from separate 2-L bottles. Both colas are equally carbonated. You are able to drink 1 L of cola, but your friend can drink only about half a liter. You each close the bottles and place them in the refrigerator. The next day when you each go to get the colas, whose will be more carbonated and why?
Explain the trends in solubility (grams per 100 mL of water) of the alkali-metal fluorides and permanganates.
Using KF as an example, write equations that refer to Hsoln and Hhyd Lattice energy was defined in Chapter 3 as H for the reaction K+(g) + F (g) KF(s). Show how you would utilize Hesss law to calculate Hso1n from Hhyd and HLE for KF, where HLE = lattice energy. Hsoln for KF, as for other soluble ionic compounds, is a relatively small number. How can this be since Hhyd and HLE are relatively large negative numbers?