Evaluate the molality of ethyl alcohol in water

Assignment Help Chemistry
Reference no: EM13557664

Calculate the molality of a 0.052 M solution of ethyl alcohol in water at 25 degree Celsius. (assume the density of the solution at such low concentration is equal to that of water at 25 degree Celsius,0.997 g/mL.)

Reference no: EM13557664

Questions Cloud

Define the molar mass of the unknown substance : A solution containting 1.45g of an unknown substance in 26.5g of succinonitrile was found to freeze at 34.4 degrees celcius. what is the molar mass of the unknown substance.
Explain the mass of co2 found in a can of soda : The soluability of Co2 in water is at 25 degree C and 1 atm is 0.034 mol/L. What is the mass of Co2 found in a 335mL can of soda at 25 degree C, assuming the manufacturer used a pressure of 2.9 atm of Co2 to carbonate the beverage.
A parallel-plate capacitor has plates of area : A parallel-plate capacitor has plates of area 0.16 m2separated by a distance of 0.004 m. What is the strength of the electric field between these plates when this capacitor isconnected to a 4-V battery?
Evaluate the speed of the bullet at impact with the block : A 12.0 g bullet is fired horizontally into a 100 g woodenblock that is initially at rest on a frictionless horizontalsurface and connected to a spring having spring constant 150 N/m. what was thespeed of the bullet at impact with the block
Evaluate the molality of ethyl alcohol in water : Calculate the molality of a 0.052 M solution of ethyl alcohol in water at 25 degree Celsius. (assume the density of the solution at such low concentration is equal to that of water at 25 degree Celsius,0.997 g/mL.)
Estimate the velocity of the truck right after the collision : A 1200 kg car is traveling initially with a speed of 25.0 m/sin an easterly direction crashes into the rear end of a 9000kg tuck moving in the same direction at 20.0 m/s. What is the velocity of the truck right after the collision
Which of the following is not a point estimate : Which of the following is NOT a point estimate?
Define uranium to form uranium oxide : 5g of Oxygen combines with 37.20g of Uranium to form Uranium Oxide: What percentage (by mass) of this compound is O and U
What was the initial speed of the ball : A 7.00 kg bowling ball collides head-on with a 2.00 kg bowlingpin, which was originally at rest. The pin flies forward with aspeed of 3.00 m/s. what was the initial speed of the ball

Reviews

Write a Review

Chemistry Questions & Answers

  Define substances can act as oxidizing agents

Substances A2, B2, and C2 can act as oxidizing agents. Solution A2 is green, B2 is yellow, and C2 is red. In the reactions in which they participated they are reduced to A-, B-, and C- ion, all of which are colorless

  When formic acid is heated it decomposes to hydrogen and

when formic acid is heated it decomposes to hydrogen and carbon dioxide in a first order decay calculate the partial

  Calculate the enthalpy change for the dissolution

Assuming the solution has a heat capacity of 4.18 J/°Cg and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol."

  Explain solutions of hcl and naoh

You are given solutions of HCl and NaOH and must determine their concentrations. You use 30.6 mL of NaOH to titrate 100. mL of HCl and 18.0 mL of NaOH to titrate 50.0 mL of 0.0796 M H2SO4. Find the unknown concentrations.

  Determine the possibility of the use of anabolic steroids

In the Olympics and other major athletic competitions, a GC-MS is used to screen athletes for their use of banned substances such as steroids.

  What is the diameter in micrometers of a spherical

what is the diameter in micrometers of a spherical inknbspdroplet from an early version of an ink-jet printer if the

  How to calculate the electric force on an electron

Use Coulomb's law, F = kq1 Q2 /d^2, to calculate the electric force on an electron (Q = - 1.6 \times 10^- 19C exerted by a single proton if the particles are 0.53 \times 10^ - 10m apart.

  Define why the buffer prevents large changes

Use Le Chatelier's principle to explain why the buffer prevents large changes from occuring in PH when

  Define ammonium chloride concentration

Calculate the pH of a solution that has an ammonium chloride concentration of .05 M and a sodium acetate concentration of .045 M

  Evaluate the first-order resolution

Consider an infrared grating with 84.0 lines per mm and 15.0 mm of illuminated area. calculate the first-order resolution (λ/Δλ) of this grating. How far apart in cm^-1 must two lines centered at 1200 cm^-1 be if they are to be resolved.

  Explain a final mixture that has a potassium nitrate content

A chemist has 80.0 kg of a mixture that is 10.0% potassium nitrate by mass. How much additional potassium nitrate must be added to produce a final mixture that has a potassium nitrate content of 25.0%?

  What is the minimum amount of kcn

4Au + 8KCN + O2 + 2 H2O --> 4 KAu(CN)2 + 4 KOH what is the minimum amount of KCN (in g) needed to react with 15.6 g of gold?

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