Explain the caco3 that precipitated was filtered and dried

Assignment Help Chemistry
Reference no: EM13704930

Problem- Archaeologists removed some charcoal from a Native American campfire, burned it in O2, and bubbled the CO2 formed into a Ca(OH)2 solution (limewater). The CaCO3 that precipitated was filtered and dried. If 4.58 g of the CaCO3 had a radioactivity of 3.2 disintegrations/min, how long ago was the campfire?

Show all steps to describe the solution of above problem

Reference no: EM13704930

Questions Cloud

What is the ph of the solution if the concentration : Problem- In a solution of 108.5 mM acetate buffer (again, this is the concentration of all ionization states of the acetate/acetic acid combined), what is the pH of the solution if the concentration of acetate is 94.9 mM
Determine the induced emf in the solenoid : An 85 mH solenoid inductor is wound on a form 0.80 m in length and 0.10 m in diameter. At the given instant, the induced emf in the solenoid is closest to
Find what charge enclosed should we use : A hollow insulating sphere with an inner radius of 7.80 cm and outer radius of 13.5 cm has a uniform charge density of 91.1 μC/m3 distributed throughout the volume between If we want to use Gauss' Law to find the electric field at r = 19.0 cm, what..
Explain general chemical equation represents a real change : Problem- So I know, we can find delta G by adding the numbers up then Keq by finding deltaG=-lnrtkeq but how do I find ksp from keq? Suppose that the following general chemical equation represents a real change with the provided thermodynamic para..
Explain the caco3 that precipitated was filtered and dried : Problem- Archaeologists removed some charcoal from a Native American campfire, burned it in O2, and bubbled the CO2 formed into a Ca(OH)2 solution (limewater). The CaCO3 that precipitated was filtered and dried. If 4.58 g of the CaCO3 had a radioa..
What is the lowest flagpole harmonic that the mouse can hear : Suppose that a standing wave on the flagpole gives rise to a sound wave of the same frequency. What is the lowest flagpole harmonic that the mouse can hear
Find the lowest frequency standing wave that can be formed : A flagpole consists of a flexible, 2.89 m tall fiberglass pole planted in concrete. What is the lowest frequency standing wave that can be formed
Estimate the wavelength of the standing wave : You have a string with a mass of 0.0127 kg. You stretch the string with a force of 8.13 N, giving it a length of 1.81 m. What is the wavelength of the standing wave you create in the string
Explain stoppered flask with basic luminol and then opened : Problem- Your chemiluminescence reaction will actually occur very slowly in air. What component of air will bring about this reaction and what is its approximate concentration in air. If you had a stoppered flask with basic luminol and then opened..

Reviews

Write a Review

Chemistry Questions & Answers

  Explain net redox reaction and explain the diagram

Using the Dry Cell or Leclanche cell Diagram. Please write the half reactions (reactions at Anode and Cathode) and net redox reaction and explain the diagram

  Calculate ammonia in ppm over ammonium hydroxide solution

Calculate the gas NH3 in ppm over NH4OH solution.The density of the solution is 0.9g/ml and the Commercial concentrated aqueous ammonia is 29%.

  Explain which has the highest vapor pressure

Explain which has the highest vapor pressure. 20g (c6H12O6) glucose, 20g (C12H22O11) sucrose 10 g (KC2H3O2 potassium

  Compute the ph of a buffer solution made by mixing

Calculate the pH of a buffer solution made by mixing 49 ml of a 0.07 M ammonia solution with 52 ml of a 0.10 M ammonium nitrate solution. Give the pH to two decimal places.

  Explain what is the molar solubility of agcl

Explain what is the molar solubility of AgCl in 1.0 M K2S2O3 if the complex ion Ag(S2O3)23- forms. The Ksp for AgCl is 1.8 *10(-10) and the Kf for Ag(S2O3)23- is 2.9*1013.

  Explain a gaseous fuel mixture stored methane

Explain a gaseous fuel mixture stored at 747 mmHg as well as 298 K contains only methane and propane. While 11.3 L of this fuel mixture is burned, it produces 766 kJ of heat.

  Explain what are the rules of giving the iupac name

What are the rules of giving the IUPAC name and the common name of Aromatic Hydrocarbons with 1, 2 and 3 substituent

  Explain one wavelength or a mixture two or more wavelengths

Some copper compounds emit green light when they are heated in a flame. how would you determine whether the light is of one wavelength or a mixture two or more wavelengths

  State carbon tetrachloride among many chlorinated organic

The U.S. Food and Drug Administration lists dichloromethane (CH2Cl2) and carbon tetrachloride (CCl4) among the many chlorinated organic compounds that are carcinogenic (cancer-causing).

  State what mass of limestone would be required to neutralize

What mass of limestone (in kg) would be required to completely neutralize a 15.3 billion-liter lake that is 1.9×10^-5 M in H2SO4 and 8.9×10^-6 M in HNO3

  What pressure will the air exert

Using a sample of 350. mL air  is collected at 35 Celsius has a pressure of 550. torr. if it is allowed to expand to 425 mL at 57 Celsius then What pressure will the air exert?

  State reaction does the half life increase over time

reaction does k decrease over time what about in a 0 and 1 st order reaction. In a second order reaction does the half life increase over time what about in a 0 and 1 st order reaction?

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