Determine the molecular weight of the solute

Assignment Help Chemistry
Reference no: EM13221660

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.

39.7 g/mol

58.4 g/mol

46.2 g/mol

62.0 g/mol

74.2 g/mol

Reference no: EM13221660

Questions Cloud

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.
Evaluate the boiling point of a solution : Calculate the boiling point of a solution prepared by dissolving 70.0 g of naphthalene, C10H8 (a nonvolatile nonelectrolyte), in 220.0 g of benzene, C6H6. The Kb for benzene = 2.53°C/m. The boiling point of pure benzene is 80.1°C.
What is the average time a car is in the system : Automobiles arrive at a drive through window at a post office at the rate of 4 every 10 mins. The average service time is 2 mins. The poisson distribution is appropriate for the arrival rate and service times are exponentially distributed.
Determine the real interest rate for years 1978 through 1982 : determine the real interest rate for the years 1978 through 1982 assuming that people expect the rate of inflation to be the average rate of inflation in the two previous years. Year: 1977 1978 1979 1980 1981 1982 Nominal interest rate: 5.6% 7.6% ..

Reviews

Write a Review

Chemistry Questions & Answers

  Explain a certain substance has a heat of vaporization

A certain substance has a heat of vaporization of 29.00 kj/mol. At what Kelvin temperature will the vapor pressure be 3 times highe

  What will be the volume of 300g of mercury

if the density of mercury is 13.6g/cm3, what will be the volume of 300g of mercury ?

  State the highest possible oxidation state for halogens

The highest possible oxidation state for halogens is +7 and the lowest possible is -1. Which of the following could not disproportionate?

  What is the molarity of the sulfuric acid

A 10.20-mL sample of sulfuric acid from an automobile battery requires 35.99-mL of 2.33 M sodium hydroxide solution for complete neutralization. What is the molarity of the sulfuric acid? Sulfuric acid contains two acidic hydrogens.

  Nitrogen dioxide dimerizes to produce dinitrogen tetroxide

Nitrogen dioxide dimerizes to produce dinitrogen tetroxide. Give a possible explanation for why this reaction occurs

  What the oxidation state of br2

what the oxidation state P in PO4^-2? what the oxidation state O in PO4^-2?

  State atomic emission measurement of concentration

Why does an atomic emission measurement of concentration have more error associated with it than an atomic absorption

  Calculate the pressure of substance at 295 k.

at constant volume, the initial pressure of a substance is 0.63 atm and the initial temperature is 283 k.calculate the pressure of the substance at 295 k.

  Structures for all products of methyl

Consider All the by products that will be formed by E1/E2 processes for the reaction of 2-methyl, Provide structures for all possible by products b) which alkene would be favored and why?

  How many unpaired electrons in the f22+ ion

How many unpaired electrons in the F22+ ion are based on molecular orbital theory? The order of the molecular orbitals are (σ2s)(σ*2s)(σ2p)(π2p)(π*2p)(σ*2p).

  Explain the graphing of the data if carbon dioxide

What difference would you predict would occur in the graphing of the data if carbon dioxide was used instead of the components of air?

  Determine the volume of the gas sample

A 3.84-mole sample of a gas is held at a temperature of 297 K and a pressure of 286 atm. Determine the volume of the gas sample.

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