Explain what is the kf value for this solvent

Assignment Help Chemistry
Reference no: EM13126539

Solvent: Finding the Kf Value
Question: A solution of 0.2113 g of water dissolves in 25.0 g of a solvent which freezes at 11.5 EC below the freezing point for the pure solvent. What is the Kf value for this solvent?

Reference no: EM13126539

Questions Cloud

What is the molarity of the sulfuric acid : If the density of the solution is 1.1094 g/mL, what is the molarity of the sulfuric acid?
Conclude that more than half of seniors think job : In all, 53 say "good." Does the poll give reason to conclude that more than half of all seniors think their job prospects are good? The hypotheses for a test to answer this question are?
Volume expressed in terms of height : A cylindrical drill with radius r1 is used to bore a hole through the center of a sphere of radius r2. Find the volume of the ring-shaped solid that remains.
What mass of hcn and of h2o will be produced : If 5.28 x 10^3 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?
Explain what is the kf value for this solvent : A solution of 0.2113 g of water dissolves in 25.0 g of a solvent which freezes at 11.5 EC below the freezing point for the pure solvent. What is the Kf value for this solvent?
Annual lease payment : The lease terms are arranged so that a return of 12% is earned by the lessor, what is the annual lease payment required to yield the desired return???
Explain mass percentage and a solution of ethylene glycol : Ethylene glycol, C2H6O2 (MW=62.1mol) has a density of 40.0 mass percentage and a solution of ethylene glycol in water is 1.0514 g/mL at 20 EC. Calculate the molality of the solution
Volume of ring-shaped solid : A cylindrical drill with radius 2 is used to bore a hole throught the center of a sphere of radius 7. Find the volume of the ring shaped solid that remains using polar coordinates.
Prepare each of the journal entries listed below related : Top Company obtained 100 percent of Bottom Company's common stock on January 1, 20X6 by issuing 12,500 shares of its own common stock, which had a $5 par value and a $15 fair value on that date.

Reviews

Write a Review

Chemistry Questions & Answers

  Name this compound

The substance CS2 has a melting point of -110.8°C and a boiling point of 46.3°C. Its density at 20°C is 1.26 g / cm3. It is highly inflammable. a.)Name this compound.

  Calculating charge balance

The Cl^- concentration in the water analysis given has been questioned. What concentration of Cl^- (mg/L) would make the cations and anions balance?

  What is the weight percent of na2co3 in the original sample

An impure sample of sodium carbonate, (Na2CO3) is allowed to react by dissolving it in an aqueous solution of 0.134 M HCl, according to the following reaction:

  How many millilitres of 0.200 m hcl must be added

How many millilitres of 0.200 M HCl must be added to 50.0 mL of a 0.200 M solution of NH3 in order to prepare a buffer that has a pH of 8.60? Kb of NH3 = 1.8 x 10-5.

  Determine the temprature

A gas sample is held at constant pressure. The gas occupies 3.26L of volume when the temperature is 51.6 F . Determine the temprature at which the voloume of the gas is 3.45 L.

  What fraction of the time will the current be turned on

An oil bath maintained at 50.5 oC loses heat to its surroundings at the rate of 4.68 kJ/min. Its temperature is maintained by an electrically heated coil with a resistance of 60 operated from a 110 V line.

  Determine how many moles of so3 are formed

Determine how many moles of SO 3 are formed if 12.24 moles of O 2 react with excess SO 2 ,? use the balance equation given as  2SO 2 (g)+O 2 (g)----> 2SO 3 (g)

  Determine the age of the rock

Using a sample of gas has a mass of 38.7mg. Calculate the molar mass if its volume is 228mL at a temperature of 57°C and a pressure of 832torr?

  What would be expected mass of the cooled dehydrated salt

if a 2.743g sample of MgSO4 7H2O were heated strongly, what would be the expected mass of the cooled dehydrated salt? (use M=246.471g mol-1 as the molar mass of MgSO4 7H2O.

  Question based on bio fuel production

Why do some scientists have concerns have regarding further increases in bio fuel production. giving chemical reasons explain why is is expensive to manufacture ethanol from cellulose.

  How much heat is released

How much heat is released when 4.50 g of methane gas is burned in a constant-pressure system? CH4 (g) + 2O2(g) -> CO2 (g) + 2H2O(l) H=-890kJ

  Determine what mass of ar is needed to exert

Determine the final concentration and Determine What mass of Ar is needed to exert half the pressure (at the same conditions of volume and temperature)?

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