Question

what number is represented by barn?

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Science
Chemistry

Other

Related Chemistry Q&A

Find answers to questions asked by students like you.

Q: 17.100 One mechanism for the synthesis of ammonia proposes that N, and H, molecules catalytically di...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: A cube of osmium metal 1.500 cm on a side has a mass of 76.31 g at 25 ∘C What is its density in g/cm...

A: Formula to be used: Density = mass/volume Volume of a cube = (length of side)3 Given that: Mas of os...

Q: Palmitate and Behenate are saturated fatty acids with 16 and 22 Carbons respectively. Which would yo...

A: Melting point is a temperature at which there occurs equilibrium between solid and liquid phase of a...

Q: 135 Joules of heat are required to increase the temperature of 10.0 grams of an unknown metal from 2...

A: heat is defined as the form of energy that is transferred between one substance to other substance ....

Q: An unbalanced force of 45 N is applied to a mass 7.3 kg. What will be the resulting acceleration in ...

A: According to definition of applied force - It is given as product of mass and the acceleration cause...

Q: What are the missing reagents and compounds below ´Na `OH → B Br H,SO, E D OTMS `OH он HO TMS = (CH3...

A: Click to see the answer

Q: Write down the qualitative analysis of alcohols?

A: Qualitative analysis is a branch of chemistry that deals with the identification of elements present...

Q: 4. You prepare several dilutions of an unknown compound. You measure the absorbance of each solution...

A: According to Beer-Lambert Law: where A = Absorbance, b = path length and c = concentration The grap...

Q: A solution is made initially with 0.200 M HIO₃ (Kc = 0.170). Once the equilibrium below is establish...

A: The equilibrium reaction (dissociation reaction) taking place can be written as, => HIO3 (aq) ---...

Q: for number 1, just prepapre those final product from Benzene or Benzol

A: Click to see the answer

Q: Chemistry Question

A: Click to see the answer

Q: Naming the IUPAC names of the following compounds in the picture below:-

A: Click to see the answer

Q: 50.0 mL of 0.100 M hydrochloric acid  moles of H+ is equal to 0.005 100.0 mL of 0.200 M nitric acid...

A: Click to see the answer

Q: CaCO3(s)      CaO(s)      +      CO2(g)   If 3.32 g CaCO3 is decomposed, how many grams of CaO will...

A: Molar Mass is defined as the mass of one mole of a substance. The chemical reaction is given as foll...

Q: Thermodynamics

A: Click to see the answer

Q: An aqueous solution containing 5.41 g of lead(II) nitrate is added to an aqueous solution containing...

A: Click to see the answer

Q: 3) Predict the products of the following reactions: a) 1,3-hexadiene + HCI (show mechanism) b) 2-met...

A: The complete chemical equation of reaction between 1,3-hexadiene and HCl with mechanism is shown bel...

Q: In this station, you will find a sample of table salt; the chemical formula of table salt is NaCl. U...

A: Formula to calculate the mass percent of solute WV in solution. Mass percentage of solute WV=Mass of...

Q: Calculate these volumes.(a) What is the volume of 11.3 g graphite, density = 2.25 g/cm 3 ?(b) What i...

A: Relation between Mass, volume and density: Mass = Volume x density a) Given that:    Mass of graphit...

Q: 17.108 Glauber's salt, Na,SO, 1OH,O, was used by J. R. Glauber in the 17th century as a medicinal ag...

A: It is a heterogeneous equilibrium mixture so solid and liquid not considered in Kp experession 2) ac...

Q: The density of zinc is 7.1 g/cm3g/cm3 What is its density in kilograms per cubic meter Express your ...

A: Given, Density of Zinc = 7.1 g/cm3   We need to convert its density in kilograms per cubic meter (kg...

Q: Which one of the following substances is a strong electrolyte in aqueous solution?   (a) Vinegar (b)...

A: The substances which have the capacity to conduct electricity in aqueous solution are termed as elec...

Q: Calculate the AG° for the following reaction at 25°C. You will have to look up the thermodynamic inf...

A: The reaction given is, => 2 Mg (s) + O2 (g) -------> 2 MgO (s) The ΔGo of any reaction is give...

Q: A 7.591-g gaseous mixture contains methane (CH₄) and butane (C₄H₁₀). Complete combustion to form car...

A: Click to see the answer

Q: In order to use the pre-equilibrium approximation which of the following must be TRUE? Select one or...

A: As you not specified so I am giving answer of first question as per guidlines Statement a,d,e are co...

Q: Q. Write fragments in mass spectroscopy of CH3- O-CH2-CH2-CI , m/z 14, 15, 27 ,28 ,45 ,63 ,77 ,94. m...

A: The mass fragments of the CH3-O-CH2-CH2-Cl are: (a) 14    (b) 15    (c) 27    (d) 28    (e) 45     (...

Q: The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an acti...

A: Click to see the answer

Q: Which of the following cyclohexane conformation is (are) consider to be the most stable conformation...

A: Given conformations,        

Q: In each write dovvii une chemical symbol for the atom which will have more negative charge. e molecu...

A: Given molecules, , and

Q: Fill the box with reagents that could be used to accomplish the transformation. Will require more th...

A: Click to see the answer

Q: Write a isotope symbol for An atom with 66 neutrons and a mass number of 116

A: Isotopes are the species that differ to each other in number of neutrons they possess, but have same...

Q: Consider the equilibrium system described by the chemical reaction below, which has a value of Kc eq...

A: The relation between reaction quotient Qc and equilibrium constant Kc is as shown below: If Qc > ...

Q: A) Calculate the mass of a gold-197 atom using the information from question 9 and the masses of the...

A: The ratio of mass to the volume of the solution is known as density.

Q: Which ones go into which box?

A: Density of any substance is given by, => Density = MassVolume Hence if we have any two out of the...

Q: To prepare for a laboratory period, a student lab assistant needs 525 g of a compound. How many poun...

A: Given, Mass of compound = 525g

Q: Which of the following molecules may show infrared absorption spectra: (i) CH3CH3, (ii) CH4, (iii) C...

A: Any individual bond in an organic compound with symmetric structures and identical groups at each en...

Q: How can one nonpolar molecule induce a dipole in a nearby nonpolar molecule?

A: If there is no electronegativity difference between the two atoms joined,then the molecule is said t...

Q: Which subatomic particles have a negative charge?

A: A typical atom consists of three subatomic particles: protons, neutrons, and electrons. Protons and ...

Q: Under certain conditions the rate of this reaction is zero order in dinitrogen monoxide with a rate ...

A: Given: Rate constant = 0.0061 M.s-1 Initial concentration of N2O = 150 mmol Final concentration of N...

Q: Determine the molar solubility of copper(1) azide (CuN,) in a solution with a pH of 2.446. Ignore ac...

A: Click to see the answer

Q: 17.14 Balance each reaction and write its reaction quotient, Q. (a) NO,CI(g) = NO2(g) + Cl2(8) (b) P...

A: Balance Chemical equation means no of atoms should be equaal in both side reactant and product Qc= [...

Q: Define strong acid-strong base titration ?

A: Given: Strong acid-strong base titration

Q: The formula of lactose is C12H22O11. How many carbon atoms does it have? Write the numerical answer ...

A: Given information: Formula for lactose = C12H22O11

Q: Q . Write different inlet systems usedfor the introduction of sample into the ion source in mass spe...

A: Mass spectroscopy is an analytical technique that calculated the ration of mass to charge and then i...

Q: An English chemistry professor needs a cup of hot tea before grading 50 homeworkassignments but his ...

A: Click to see the answer

Q: 6) A 1.00 g sample of H20(9) at 100 °C, and a constant pressure of 1 atm has initial volume of 1.70 ...

A: delta S  = nR ln Vf / Vi                = 0.055 × 8.314 × ln 0.85 / 1.70 delta Ssystem   = -0.320 J ...

Q: 17.102 For the equilibrium K. = 9.0X10-8 at 700°C %3D 2H2(g) + S,(8) H,S(g) the initial concentratio...

A: The reaction quotient of the equilibrium is used to measure the relative amount of product with resp...

Q: Calculate the pH of a 0.0010 M solution of HB, a hypothetical acid with K = 9.6 x 10$. (Use th metho...

A: The pH of 0.0010 M HB solution is calculated as shown below.

Q: Please explain this problem in detail!

A: Write the relation between ∆H0, ∆S0 and ∆G0. ∆G0=∆H0-T∆S0 Where ∆G0 is the standard Gibb's free ener...

Q: 11. The lifetime of the VOC called glyoxal in the atmosphere is controlled by its reaction with the ...

A: Given,kOH=3.7×10-8cm3molecule-1s-1kphot=1.2min-1Since, 1min-1=160s-1therefore, 1.2min-1=1.260s-1kpho...