Describe what is the molecular weight of the compound

Assignment Help Chemistry
Reference no: EM13221663

The freezing point of an aqueous solution containing 15 g of a nonelectrolyte in 150 mL water is -5.4°C. What is the molecular weight of the compound? Kf = 1.86°C/m for water.

121 g/mol

2.78 g/mol

34.4 g/mol

41.2 g/mol

53.8 g/mol

Reference no: EM13221663

Questions Cloud

Describe the vapor pressure of a solution : Calculate the vapor pressure of a solution prepared by dissolving 70.0 g of naphthalene, C10H8 (a nonvolatile nonelectrolyte), in 220.0 g of benzene, C6H6, at 20°C. Assume the solution is ideal. The vapor pressure of pure benzene is 74.6 torr at 2..
Describe the vapor pressure of pure propyl chloride : The vapor pressure of pure propyl chloride is 347 torr at 25°C and that of pure propyl bromide is 133 torr at 25°C. Assume that the solution is an ideal solution.
How would be break down the scenario in economic terms : Economic Decision whether to stay out of town or spent the night. The town is 150 miles from my house which takes 2.5 hours of drive time. The hotel cost $119.00 per night. While I will have 5 hours my time value is $25.00 per hour of non-producti..
What is the most critical step in capital budgeting process : What is the most critical step in the capital budgeting process? Explain.
Describe what is the molecular weight of the compound : The freezing point of an aqueous solution containing 15 g of a nonelectrolyte in 150 mL water is -5.4°C. What is the molecular weight of the compound? Kf = 1.86°C/m for water.
Formulate and solve a linear programming model : Formulate and solve a linear programming model in Excel to develop a work schedule that processes all checks by 8 P.M. and minimizes daily labor costs.
Find the mean and the variance of x : Suppose a random variable X has a discrete uniform distribution on the first m positive integers. Find the mean and the variance of X. What are the mean and the variance if X equals the outcome when rolling a fair six-sided die
Determine the molecular weight of the solute : A 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. The solution freezes at -1.23°C. Calculate the molecular weight of the solute. Kf for water = 1.86°C/m.
General issues you might deal with as a manger : What type of experiences and training you think you will need today to achieve a management position like in a Humane Society Animal Shelter organization.

Reviews

Write a Review

Chemistry Questions & Answers

  State the standard reaction gibbs energy for the enol

We are investigating the keto-enol tautomerization of acetylacetone (pentane-2,4-dione) in an aqueous solutions at 25 degrees Celsius. The standard reaction Gibbs energy for the enol ketone tautomerization is -3.64 kJ/mol.

  Compute e red involving pd

This question has been asked several times and there appaer to be two different answer and no clear answer on who is right. (One response says the answer is wrong) Calcutlate E red involving Pd

  What is the rate constant for the reverse reaction

What is the rate constant for the reverse reaction at the same temperature?

  Calculate the ph of the solution

A 50.00-mL sample of 0.100 M KOH is titrated with 0.152 M HNO3. Calculate the pH of the solution after 52.00 mL of HNO3 is added.

  Main organic product formed of acetyl chloride reacting

Major Organic Product Formed of Acetyl Chloride Reacting with Reagents, What major organic product would you expect to be formed when acetyl chloride reacts with each of the following reagents?

  Describe butane must be burned to provide the heat

How many grams of butane must be burned to provide the heat needed to melt a 85.0-g piece of ice (at its melting point) and bring the resulting water to a boil (with no vapourization)? Assume a constant pressure of 1 bar and use the following data

  State the gas was obtained by boiling liquid nitrogen

The gas was obtained by boiling liquid nitrogen stored in a 180.0 L tank. What volume of N2 is released at 0.955 atm of pressure and 25 degree celsius from a tank full of liquid N2 (d=0.808 g.mL)?

  Explain forensic scientists in analyzing crime scenes

The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione, better known as luminol, is used by forensic scientists in analyzing crime scenes for the presence of washed-away blood.

  What is the molarity of a solution prepared

What is the molarity of a solution prepared by dissolving 72.0 g of HCI in enough water to make 500 ml of solution.

  Explain thermal equilibrium

Thermal equilibrium, 10.0g of Fe(s) at 98.0 degrees Celsius is placed in 50.0mL of H2O(l) at 20 degrees Celsius

  What is the ph of the solution

What is the PH after .15 mol of NaOH is added to .050 mol of propanic acid and ,080 M of sodium propanoate with a ka of 1.3x10^.5

  Calculate the systematic treatment of equilibrium

Calculate the systematic treatment of equilibrium. Remember C2O4^2- is a weak base so you must consider other equilibria. (Ksp(ZnC2O4)=7.5X10^-9, Kb1=1.8X10^-10, Kb2=1.8X10^-13). Solve using systematic treatment of equilibrium.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd