Answered: Calculate the molality of a solution…

Science

Chemistry

Calculate the molality of a solution formed by adding 3.40 g NH4Cl to 17.5 g of water.

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter14: Mixtures And Solutions

Section: Chapter Questions

Problem 71A

See similar textbooks

Related questions

Q: What is the molality of 50.0 grams of KBr compound dissolved in 900.0 mL water.

A: We have to find the number of moles of KBr. As , Molality = Moles of soluteMass of the solvent (in…

Q: Determine the percent by mass of MgCl2 if 3.3 g of MgCl2 is dissolved in 46.5 g of water.

A: Given, mass of MgCl2 = 3.3 g Mass of Water = 46.5 g Total mass of Solution = mass of water + mass of…

Q: molality of the 0.75 mol of salt (NaCl) dissolved in 155 g of water?

A: Given, Moles = 0.75 mol Mass of solvent = 155 g = 0.155 Kg Molality = mole/mass of solvent(Kg)

Q: Differentiate among a homogeneous solution, suspension and a colloidal solution, giving a suitable…

Q: What is the molality of a solution made by dissolving 46.7 grams of NH 4Br in 680 grams of water?

A: Given,

Q: molarity and molality

Q: What is the molality of a solution in which 12 g of NaCl is dissolved in 19 Kg of water?

A: Molality: It is the amount of solute that is present per kilogram of a solution. In mathematical…

Q: A solution of phosphoric acid, H3PO4, was made by dissolving 10.0 g of the acid in 100.0 ml of…

Q: Calculate the molarity of a solution composed of 4.5G of AgNO3 in 250mL of aqueous solution

A: Given that, Weight of AgNO3 dissolve to make a solution w = 4.5 g Volume of AgNO3 solution V =…

Q: Calculate the freezing point of a 1.86 M solution of MgCl2 in water. MgCl2 is a strong electrolyte

A: Applying concept of dipression in freezing point. ∆Tf= i×Kf× m

Q: What is the molality of a solution that contains 2.16 g mL of chemical A (denisty = 1.43 g/mL and…

Q: What is the molality of a solution that contains 4.220 grams of potassium sulfate and 250. g of…

A: Given: mass of K2SO4 = 4.220g mass of water = 250 g =0.250 Kg We know, Molar…

Q: 3) Calculate the molality of a solution prepared by dissolving 19.9 g of KCI in 750.0 mL of water.…

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

Q: Calculate the molality of a 2.77 M ethanol (C2H5OH) solution whose density is 0.9623 g/mL.

Q: alculate the molality of a 0.898 M ethanol (C2H5OHC2H5OH) solution whose density is 0.429 g/ml.

A: Molality(m):It is defined as number of mole of solute dissolved in per kilogram of solvent.…

Q: Calculate the molality of a solution formed by adding 3.80 g NH4Cl to 13.7 g of water.

A: Molality of solution= 5.18 m

Q: Calculate the molality of a solution formed by adding 2.60 g NH,Cl to 19.2 g of water.

A: Molality is a method of expression concentration. It is denoted by m. molality, m =moles of…

Q: A solution of LiI in water has XLiI= 0.0600. What is the molality?

A: Given,mole fraction of a solution ( XLiI ) = 0.0600

Q: Calculate the molality of a solution formed by adding 6.832 g of methanol (CH3OH) to 100.00 mL of…

A: Molality is defined as number of moles of solute dissolved per kilogram of solvent.

Q: A solution is prepared by dissolving 17.75 g sulfuric acid, H2SO4, in enough water to make 100.0 mL…

A: mass of sulfuric acid, H2SO4 = 17.75 gNote: molar mass of sulfuric acid, H2SO4 = 98.079 g/molThe…

Q: Calculate the molality of a solution containing 289. g of HCl in 857. g of HO. Use the correct…

A: The mass of HCl (solute) is 289. g.The mass of HO (solvent) is 857 g (0.857 kg).To find the molality…

Q: Calculate the molality of a solution

A: Molality of solution is the ratio of number of moles of solute to the mass of solvent in kilogram.

Q: Determine the percent by mass of MgCl2 if 3.9 g of MgCl2 is dissolved in 28.3 g of water.

A: Ratio of mass of the solute to the mass of the solution multiply by 100 is known as the percentage…

Q: A solution was prepared by dissolving 38.0 g of KCl in 225 g of water. Calculate the molality of KCl…

A: Molality of the solution can be determined using the equation given below:

Q: 4.) What is the molality of a 5.117 M solution of phosphoric acid with a density of 1.254 g/mL?

Q: Calculate the molality of a solution prepared by dissolving 12.1 g of CH3OH in 475 g of water O 2.40…

A: Mass of CH3OH = 12.1 g Mass of water = 475 g Molality of the solution = ?

Q: Calculate the molality of a 2.05 M NaCl solution that has a density of 1.080 g/ml.

A: To calculate molality , we need moles of solute and mass of solvent.

Q: What is the molality of 2.5 g NaCl dissolved in 20.0 kg of water?

A: The given values for the preparation of NaCl solution is: weight of NaCl=2.5 gamount of water…

Q: Calculate the molarity of a solution containing 247g of H2SO4 in 1500 mL of solution

A: Mass of H2SO4=247 g Molar mass of H2SO4=98.079 g/mol Volume of the solution = 1500 mL = 1500/1000…

Q: Determine the molality of 25 g of glucose, C6H12O6, dissolved in 1.50 kg of water.

A: The given information is as follows: The mass of glucose = 25 g The mass of water = 1.50 kg The…

Q: Calculate the molality of a solution formed by adding 5.60 g NH4Cl5.60 g NH4Cl to 12.4 g12.4 g of…

Q: Determine the molality of a solution made by dissolving 55.1 g of LiF in 891 g of H2O.

Q: A 3.40-g sample of a mixture of naphthalene (C₁₀H₈) and pyrene (C₁₆H₁₀) is dissolved in 35.0 g…

A: Assuming mass of naphthalene in the mixture is y. Hence mass of pyrene = mass of mixture - mass of…

Q: Calculate the percent by volume of a solution composed of 78.0mL of ethanol and 130. mL of H2O.

A: By using the defination of percentage by volume we can solve this problem from given information.

Q: Determine the percent by mass of MgCl2 if 3.1 g of MgCl2 is dissolved in 41.1 g of water.

A: Calculate total mass of solution:

Q: a) 0.564 g CaCI2 (110.98 g/mol) is dissolved in 100.0 g water. Calculate the molality Ca2+ in this…

A: Given Weight of CaCl2 = 0.564 g Molar mass of CaCl2 = 110.98 g/mol weight of water = 100 g…

Q: A solution of KCl in water has Xkcl= .0700. What is the molality?

A: A KCl solution consists of KCl salt as the solute and water as the solvent. Mole fraction of any…

Q: A solution contains 92.2g of methanol, CH3OH, dissolved in sufficient water to give a mass of…

A: The molality of a solution is calculated by the formula: Molality m=mol of solutemass of solvent kg

Q: What is the molality of a solution composed of 3.25 g methanol (CH3OH) and 250 mL of water?

Q: An aqueous solution of ethanol (molar mass = 46.07 g/mol) has a molality of 12.15 m and a density of…

A: Answer:- This question is answered by using the simple cocept of calculation of molarity using the…

Q: Explain the difference between Crystalloid and Colloid Solutions

A: We have to differentiate between Crystalloid and Colloid Solutions.

Q: Calculate the molality of a solution formed by adding 2.10 g NH4Cl to 13.8g of water.

Q: molar concentration

Q: Molarity! A solution is prepared by dissolving 20.0 g of Chloroform (CHCl3) in 60.0 gram of benzene…

Q: Calculate the molarity of a solution prepared by dissolving 0.429 g of Ba(OH)2 in 250 cm3 of…

A: Given mass of Ba( OH )2 = 0.429 gram Volume of solution = 250 cm3…

Q: What is the molality of a solution prepared by dissolving 145.3 g C6H1206 in 850.0 g H2O?

A: Given : Mass of C6H12O6 = 145.3 g And mass of H2O = 850 g

Q: Suppose you have 1.7 g NaCl in 100.0 g of water. Calculate the molality based on the molar mass.…

Question

Calculate the molality of a solution formed by adding 3.40 g NH4Cl to 17.5 g of water.

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

Similar questions

Calculate the molality of a solution made by dissolving 115.0 g ethylene glycol, HOCH2CH2OH, in 500. mL water. The density of water at this temperature is 0.978 g/mL. Calculate the molarity of the solution.
The freezing point of a 0.21 m aqueous solution of H2SO4 is -0.796C. (a) What is i? (b) Is the solution made up primarily of (i) H2SO4 molecules only? (ii) H+ and HSO4- ions? (iii) 2H+ and 1SO42- ions?
Water at 25 C has a density of 0.997 g/cm3. Calculate the molality and molarity of pure water at this temperature.
Insulin is a hormone responsible for the regulation of glucose levels in the blood. An aqueous solution of insulin has an osmotic pressure of 2.5 mm Hg at 25C. It is prepared by dissolving 0.100 g of insulin in enough water to make 125 mL of solution. What is the molar mass of insulin?
A patient has a “cholesterol count” of 214. Like manyblood-chemistry measurements,this result is measured inunits of milligrams per deciliter (mgdL1). Determine the molar concentration of cholesterol inthis patient’s blood, taking the molar mass of cholesterolto be 386.64gmol1. Estimate the molality of cholesterol in the patient’sblood. If 214 is a typical cholesterol reading among men inthe United States, determine the volume of such bloodrequired to furnish 8.10 g of cholesterol.
6-111 As noted in Section 6-8C, the amount of external pressure that must be applied to a more concentrated solution to stop the passage of solvent molecules across a semipermeable membrane is known as the osmotic pressure The osmotic pressure obeys a law similar in form to the ideal gas law (discussed in Section 5-4), where Substituting for pressure and solving for osmotic pressures gives the following equation: RT MRT, where M is the concentration or molarity of the solution. (a) Determine the osmotic pressure at 25°C of a 0.0020 M sucrose (C12H22O11) solution. (b) Seawater contains 3.4 g of salts for every liter of solution. Assuming the solute consists entirely of NaCl (and complete dissociation of the NaCI salt), calculate the osmotic pressure of seawater at 25°C. (c) The average osmotic pressure of blood is 7.7 atm at 25°C. What concentration of glucose (C6H12O6) will be isotonic with blood? (d) Lysozyme is an enzyme that breaks bacterial cell walls. A solution containing 0.150 g of this enzyme in 210. mL of solution has an osmotic pressure of 0.953 torr at 25°C. What is the molar mass of lysozyme? (e) The osmotic pressure of an aqueous solution of a certain protein was measured in order to determine the protein's molar mass. The solution contained 3.50 mg of protein dissolved in sufficient water to form 5.00 mL of solution. The osmotic pressure of the solution at 25°C was found to be 1.54 torr. Calculate the molar mass of the protein.
What mass of a 4.00% NaOH solution by mass contains 15.0 g of NaOH?
For each of the following pairs of solutions, select the solution for which solute solubility is greatest. a. Oxygen gas in water with P = 1 atm and T = 10C Oxygen gas in water with P = 1 atm and T = 20C b. Nitrogen gas in water with P = 2 atm and T = 50C Nitrogen gas in water with P = 1 atm and T = 70C c. Table salt in water with P = 1 atm and T = 40C Table salt in water with P = 1 atm and T = 70C d. Table sugar in water with P = 3 atm and T = 30C Table sugar in water with P = 1 atm and T = 80C
For each of the following pairs of solutions, select the solution for which solute solubility is greatest. a. Ammonia gas in water with P = 1 atm and T = 50C Ammonia gas in water with P = 1 atm and T = 90C b. Carbon dioxide gas in water with P = 2 atm and T = 50C Carbon dioxide gas in water with P = 1 atm and T = 50C c. Table salt in water with P = 1 atm and T = 60C Table salt in water with P = 1 atm and T = 50C d. Table sugar in water with P = 2 atm and T = 40C Table sugar in water with P = 1 atm and T = 70C
Will red blood cells crenate, hemolyze, or remain unaffected when placed in each of the solutions in Problem 8-107?
Distinguish between dispersion methods and condensation methods for preparing colloidal systems.
What kinds of solute particles are present in a solution of an ionic compound? Of a molecular compound?