State determine the quantity of stock

Assignment Help Chemistry
Reference no: EM13174484

Determine the quantity of stock 75% EtOH required to prepare 300ml of a 25% EtOH solution.

Determine the concentration of a solution if 300 mL of a 20% buffer solution was dilated to a final volume of 1000 mL.

Reference no: EM13174484

Questions Cloud

Describe the cooling vents of nuclear reactors : Comment on whether or not your calculation supports the idea that thermal pollution around the cooling vents of nuclear reactors is detrimental to marine life
The beer''s law constant for the copper ammonia complex : A 0.3500 g sample of brass is analyzed by the procedure in the above exercise. The Beer's Law constant for the copper ammonia complex is determined to be 7.50 x 10^-1 mL/mg.
Describe the conditions to raise or lower the revenue : The university has been struggling in recent years, so they have hired you to help them in their last attempt to find an appropriate solution so that the university can survive
Outline a series of reactions leading to ethyl phenylacetate : Starting with Benzyl alcohol (PhCH2OH) and any other organic or inorganic reagents outline a series of reactions leading to ethyl phenylacetate
State determine the quantity of stock : Determine the quantity of stock 75% EtOH required to prepare 300ml of a 25% EtOH solution.
State the equilibiurm constant kc for the reaction : The equilibiurm constant Kc for the reaction below is 4,2 at 1650 degrees Celcius. H2(g)+CO2(g)---->H2O(g)+CO(g). Initially 0.80 mol H2 and 0.08 mol CO2 are injected into a 5.0-L flask
State the crossed aldol condensation of acetaldehyde : The crossed aldol condensation of acetaldehyde with benzaldehyde is aided by the fact that benzaldehyde bears no α-protons. However, a possible competitive reaction is the “selfcondensation†of two molecules of acetaldehyde.
State what is the rate law of the reaction : What is the rate law of the reaction? b) What is the rate constant for this reaction at 64 degrees Celcius? c) At 64 degrees Celcius if the initial concentration of N2O5 is 0.048 M, how long will it take to drop to 0.024 M?
What are the types of pollution control equipment : A paper mill is considering two types of pollution control equipment. Neutralization - Initial Cost: $700,000, Annual Chemical Cost: 40,000, Salvage Value: 175,000, Useful Life, in years: 5

Reviews

Write a Review

Chemistry Questions & Answers

  What are the percentages of co2 and ne

If the sample contains a combined total of 1.75 grams per mole and has a total mass of 51.0 grams, what are the percentages of CO2 and Ne in the sample by mole?

  What is the total number of liters of o2 at stp

what is the total number of liters of O2 at STP needed to produce 6.0 times 10^23 molecules of H2O.

  What is its volume at 760 torr

The volume of a gas sample is 200L at 740 torr. what is its volume at 760 torr? Assume that the Temperature remains constant

  What is the pressure on the gas trapped in the buret

if the height of the mercury column in a leveling bulb is 30 mm greater than that in the gas buret and atmospheric pressure is 670 mm, what is the pressure on the gas trapped in the buret.

  What wavelength of light would you report

What wavelength of light would you report in units of nm, if the light had a wavelength of 7.60 x 10-10 m?

  What is the empirical formula of the compound

a compound is composed of only C.H and O. the combustion of a 0.519-g sample of the compound yields 1.24g of CO2 and 0.255g of H2O.

  Why do primary alkyl halides undergo sn2 substitution

Why do primary alkyl halides undergo SN2 substitution reactions more rapidly than do secondary or tertiray alkyl halides?

  Calculate the ksp for the compound

the pH of a saturated solution of a metal hydroxide MOH is 9.68. calculate the Ksp for the compound

  Determine the density of solid krypton

Krypton crystallizes as a fcc (face centered cubic unit cell) having an edge length of 559 pm. What is the density of solid Krypton?

  Explain it is possible to draw multiple lewis dot structures

For many compounds, it is possible to draw multiple Lewis dot structures that are simplifications of the structure of the true molecule. The actual structure of the molecule

  State hydrogen and nitrogen have different molecular weights

hydrogen and nitrogen have different molecular weights, so mass fractions will be different than mole fractions.

  Calculate the standard reaction enthalpy for the reaction

Calculate the standard reaction enthalpy for the reaction above (as written) using the following data: N2(g) + O2(g) -→ 2 NO(g)

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