Find out the date of the volcanic eruption

Assignment Help Chemistry
Reference no: EM13222063

A piece of charcoal from a tree killed by the volcanic eruption that formed the crater in Crater Lake (in Oregon) gave 7.0 disintegrations of carbon-14 nuclei per minute per gram of total carbon. Present-day carbon (in living matter) gives 15.3 disintegrations per minutes per gram of total carbon. Determine the date of the volcanic eruption. Recall that the half-life of carbon-14 is 5730 y.

Reference no: EM13222063

Questions Cloud

Define what is the molality : A NaOH solution that is 18.1M, has a density of 1.250 g/ml. What is the molality? Mass Percent? and Mole Fraction?
Explain how many liters of gasoline burn : how many liters of gasoline would you need to buy to complete a 142- trip in Europe? Use the following conversions
What departments should be shown on root cause analysis : What departments should be represented on the root cause analysis team that investigates this patient incident and what evidence should be presented to the root cause analysis team that investigates this patient incident
Compute the volume of household bleach : A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 10.2..
Find out the date of the volcanic eruption : Present-day carbon (in living matter) gives 15.3 disintegrations per minutes per gram of total carbon. Determine the date of the volcanic eruption. Recall that the half-life of carbon-14 is 5730 y.
Explain what are the names of m and ms : what are the names of M and MS? (Type your answer using the format iron(II) sulfide for FeS.)
Establishment and growth of a micro-brewery in colorado : Establishment and growth of a micro-brewery in Colorado, based on the techniques and methods of some of the world's best breweries in Belgium.
Explain what is the energy available for the dissociation : sunlight with a wavelength greater than 240nm. What is the energy available for the dissociation of molecular oxygen at 200nm?
Define what will be the volume when the temperature changed : temperature of 20.0 K and a pressure of 101.3 kPa. What will be the volume when the temperature is changed to 40.0 K and the pressure is changed to 50.65 kPa?

Reviews

Write a Review

Chemistry Questions & Answers

  How many grams of magnesium chloride must be dissolved

How many grams of magnesium chloride must be dissolved in 568 g of water to give a solution that freezes at -2.38°C

  What is the vapor pressure of the solution at temperature

one mole c12h22o11 is added to 0.150 kg of water and the water is heated to 100C. what is the vapor pressure of the solution at this temperature?

  What will be the change in temperature of the water

A 500.0 g iron bar at 212 degrees C is placed in 2.0L of water at 24.0 degrees C. What will be the change in temperature of the water?

  Explain a collection of n molecules

Consider a molecule having three energy levels as follows: State Energy (cm?1) degeneracy 1 0 1 2 500. 3 3 1500. 5 Imagine a collection of N molecules

  What is the mass of the liquid left over

There is 12.0 g CCl3F in a 1.1 L container at 856 torr and 300 K. What is the mass of the liquid left over?

  Calculate the specific heat capacity of the metal

Calculate the specific heat capacity of the metal when the final temperature of the mixture =38.7?C.? (Assume that there is no energy lost to the surroundings.)

  What is the ph of a solution

HClO is a weak acid (Ka = 4.0 × 10-8) and so the salt NaClO acts as a weak base. What is the pH of a solution that is 0.087 M in NaClO?

  Determine the number of molecules present in air

To determine the number of molecules present in air using the ideal gas law and Avogadro's number - how many molecules of each type of gas are present in 1.0 L of air at STP?

  Calculate the the equilbrium constant

At a certain temperature the equilbrium constant is 396 K for  H2(g) + I2(g) ↔ 2HI(g) , Calculate the the equilbrium constant for  0.5H2(g) + 0.5I2(g) ↔ HI(g)

  Explain the hazards associated with ch3cooh solution

explain the hazards associated with 1.0M CH3COOH solution, 0.10M BaCl2 solution and 0.10M Na2C2O4 solution.

  Explain what would the rate constant be at a temperature

what would the rate constant be at a temperature of 150C for the same reaction described in Part A?

  Explain what temperature in degrees celsius

At 21, the rate constant is0.0110 s^-1 . At what temperature in degrees Celsius would this reaction go twice as fast?

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