Define what is the initial concentration of a

Assignment Help Chemistry
Reference no: EM13242916

The reaction A->B follows first-order kinetics with a half-life of 21.7 hours. If the concentration of A is 0.023 M after 48 hours, what is the initial concentration of A? The answer is 0.11M can you please show how they derived at this answer

Reference no: EM13242916

Questions Cloud

Millennia b.c.e. migrations of peoples such as the hebrews : During the third and second millennia B.C.E. migrations of peoples such as the Hebrews, the Phoenicians, and the Indo-Europeans throughout Eurasia reshaped existing civilizations and gave rise to new civilizations and cultures, including the classic ..
What will the new equilibrium level of employment be : Suppose the government wishes to raise the equilibrium wage to $4 per hour by offering a subsidy to employers for each person hired. How much will this subsidy have to be What will the new equilibrium level of employment be
Who are the stakeholders : • Who are the stakeholders? Who are those people and/or groups to which we owe a duty? What are the express and implied agreements that you have with each of the constituents?
How tall is the image formed by the diverging lens : In the figure below, the converging lens' focal length is 13 cm, d = 18 cm, and the diverging lens' focal length is -12.6 cm, How tall is the image formed by the diverging lens
Define what is the initial concentration of a : The reaction A->B follows first-order kinetics with a half-life of 21.7 hours. If the concentration of A is 0.023 M after 48 hours, what is the initial concentration of A?
Geographic isolation shaped the development of the americas : Compare and contrast the ways in which geographic isolation shaped the development of the Americas and sub-Saharan Africa as distinct from Eurasia and northern Africa
Example on classical linear regression model : What is the annualized excess performance (Jensen's Alpha) of the firms that DID NOTreplace their CEO and describe the assumptions behind the classical linear regression model and the three diagnostic tests we discussed in class, the commands you w..
What change in government spending would account : The marginal propensity to consume and the marginal income tax rate are 0.9 and 1/3, respectively. The budget deficit is observed to increase by 90. a. What change in investment would account for this b. What change in government spending would acc..
Evaluate the amount of solute in g needed to prepare : Calculate the amount of solute in g needed to prepare 431.5 g of 8.85 %(m/m) LiNO3 solution.

Reviews

Write a Review

Chemistry Questions & Answers

  State meta directing substituents

indicate whether each are activating or deactivating, and whether each are ortho para or meta directing substituents.

  Determine the amount of hydrochloric gas

Determine the amount of hydrochloric gas that should be bubbled into the buffer to triple hydronium ion concentration is closest to what?

  What is the order of increasing steric hindrance

what is the order of increasing steric hindrance within these reactions and what is the reason for that order in terms of calculated energies, distance, and structures.

  Which sample contains the largest number of molecules

Which sample contains the largest number of molecules?

  Calculate the ph of phosphoric acid

Calculate the pH of 0.103 M phosphoric acid (H3PO4, a triprotic acid). Ka1 = 7.5 x 10^-3, Ka2 = 6.2 x 10^-8, and Ka3 = 4.8 x 10^-13.

  Determine the structures of compounds

determine the structures of Compounds A, B, C, D, and E. Show calculations. Support all of your structure determinations. Student performed a sodium borohydride reduction experiment.

  Perform whatever separations and tests you think necessary

Perform whatever separations and tests you think necessary to determine which ions are in fact present

  Compute the volume of sodium hydroxide

compute the volume of sodium hydroxide that is required to make a buffer with a pH = 5.77.? given that pKa = 4.77. and initial volume of the acid solution = 1.00 Litre.

  Define what relative masses of dimethyl amine

what relative masses of dimethyl amine and dimethyl ammonium chloride do you need to prepare a buffer solution

  State changing the volume of the solution

A solution is 0.034M in Na2SO4 and 0.035M in Na2CrO4. Solid Pb(NO3)2 is added without changing the volume of the solution. A. Which salt will precipitate first?

  Calculate the total amount of heat removed in the process

A 70.0 g steam sample at 150.0 degree Celsius was converted to ice at -150.0 degree Celsius, calculate the total amount of heat removed in the process.

  Explain what is the final volume of the gas in liters

A 1.00 L sample of gas, initially at 273 degrees C and 2.00 atm was cooled to 0 degrees C and the pressure changed to 0.20 atm. What is the final volume of the gas in liters?

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