Explain the density of the rain water is close

Assignment Help Chemistry
Reference no: EM13532766

The concentrationof the alkane C20H42 (FM= 282.55) in a particular sample in rain water is 0.2ppb. Assume that the density of the rain water is close to 1.00 g/ml and find the molar concentration of C20H42.

Reference no: EM13532766

Questions Cloud

Explain the molar mass of compound is measured : The molar mass of compound is measured to be 33.4, 35.2, 34.1, 33.9 g/mol in four trials. What is the avg molar mass & calculate standard deviation and %RSD for determination of the molar mass
Construct a phylogenetic tree of the organisms : Construct a phylogenetic tree of the following organisms: turkey, pine tree, dog, clam, daisy, andfern. Use the following "evolutionary novelties" to defineeach group: backbone, shell, photosynthetic (produces ownfood), flowers, cones, seeds, hete..
State the surface tension at at 25 degrees celsius increases : Although the viscosity varies over a factor of more than two in the series from hexane to nonane, the surface tension at at 25 degrees Celsius increases by only about 20% in the same series. How do you account for this
How fast is the block moving at the bottom of the incline : A 2.95-kg block initially at rest at the top of a 3.69-m incline with a slope of 42.7° begins to slide down the incline. How fast is the block moving at the bottom of the incline
Explain the density of the rain water is close : The concentrationof the alkane C20H42 (FM= 282.55) in a particular sample in rain water is 0.2ppb. Assume that the density of the rain water is close to 1.00 g/ml and find the molar concentration of C20H42.
What are the parts of the hiv virus : What are the parts of the HIV Virus? Can someone please postimages of them and does anyone know if they have three balls on onestick or one ball on a stick? There different pictures of the virusand it confuses me.
Calculate the magnitude of the average force of the bat : A pitcher pitches a baseball of mass 0.20 kg. The baseball arrives at home plate with a speed of 40 m/s and is batted directly back to the pitcher (horizontally) with a return speed of 50 m/s.  find the magnitude of the average force of the bat on ..
A wide variety of efforts : A wide variety of efforts
Explain reaction is balanced in basic solution : When the following reaction is balanced in basic solution using the lowest possible whole number coefficients, the coefficient of ClO2-(aq) will be: Cl2O7(aq) + H2O2(aq) --> ClO2- (aq) + O2(g)

Reviews

Write a Review

Chemistry Questions & Answers

  State a redox reaction is found to be spontaneous

A redox reaction is found to be spontaneous at standard conditions. Which set of thermodynamics properties is true for this reaction?

  Explain does the nmr spectrum and the ir spectrum look like

What does the 1H-NMR spectrum and the IR spectrum look like with notations on each peak on both spectra

  Explain the final temperature of the water and the coins

degress C in boling water and then dropped the hot coins into 43.0 g of water at a temperature of 15.5 C in a coffee cup calorimeter. The final temperature of the water and the coins was 21.5 C.

  Explain post-mortem redistribution

why was nortripyline measured here? was there post-mortem redistribution?Explain.Were amitriptyline and nortriptyline over the toxic dose? Acute overdose/rapid death or chronic administration/show death? Explain

  What is the empirical formula of the compound

A certain organic compound was burned, producing 1.481 g of CO2 and 0.303 g of H2O. The mass of the original sample was 0.438 g. What is the empirical formula of the compound?

  Assume the chemical formula of the compound

Predict the chemical formula of the compound that results from the reaction between the elements Si and O.

  Calculate the activation energy

Decomposition of nitric acid NO to N2 and O2 is second order with a rate constant of 0.0796 M-1 s-1 at 737 degrees C and 0.0815 M-1 s-1 at 947 degrees C. Calculate the activation energy.

  Explain an advantage of the hydroboration reaction

An advantage of the hydroboration reaction is that the rearrangement of the carbon skeleton does not occur. This lack of migration contrasts with results obtained upon the addition of hydrogen chloride to the double bond. Offer an explanation why.

  Describe two clinical uses of radioactivity

How long would it take for a radioactive isotope with a half life of 2 weeks to lose at least 70% of its radioactivity? Describe two clinical uses of Radioactivity.

  Evaluate the number of grams of sulfuric acid

Calculate the number of grams of sulfuric acid in 1 gallon of battery acid if the solution has a density of 1.33g/mL and is 38.9\% sulfuric acid by mass.

  Explain half-reactions occur in the mercury battery

The following half-reactions occur in the mercury battery used in calculators. If E°cell = 1.357 V, calculate the equilibrium constant for the cell reaction at 25°C.

  What is the mole fraction of naclo that is present

If an aqueous solution (solvent = water) is 0.5 molal in NaClO, what is the mole fraction of NaClO that is present? Hint: assume you have 1.00 kg of total solvent in your 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