User Account

All Pages

Percentage of the atoms of carbon

Assignment Help Chemistry
Reference no: EM131344021

A) In a living organism, the decay of C-14 produces 15.3 disintegrations per minute per gram of carbon. The half-life of C-14 is 5730 years. A bone sample with 4.0 g of carbon has 17.5 disintegrations per minute. How old is the bone sample in years?

B) What percentage of the atoms of carbon in the biosphere are C-14?

Reference no: EM131344021

Questions Cloud

Concentration of the solution : Or put another way a 10 mg/mL solution will have an A280 = 6.6. Let's say that 5 mL of a BSA solution is prepared, its A280 is read and A280 = 0.82 What is the concentration of the solution in mg/mL?
What is the strongest metal : 1) What is the strongest metal? 2) The strongest alloy? 3) Which salt has the highest vaporization point? 4) Which covalent molecule has the highest vaporization point?
Dual court system of the united states : Major historical developments of the U.S. courts - Dual court system of the United States and steps of the pretrial process - Six steps necessary for appeal and Five philosophical reasons for sentencing criminals
Determine the maximum weight w that can be supported : The breaking strength of the cable FG that supports the portable camping stool is 400 lb. Determine the maximum weight W that can be supported. Neglect friction and the weights of the members.
Percentage of the atoms of carbon : A) In a living organism, the decay of C-14 produces 15.3 disintegrations per minute per gram of carbon. The half-life of C-14 is 5730 years. A bone sample with 4.0 g of carbon has 17.5 disintegrations per minute. How old is the bone sample in year..
Determining the radioactive element : A) By mass spectral analysis, a sample of strontium is known to contain 2.64x1010atoms of Sr-90 as the only radioactive element. The absolute disintegration rate of this sample is measured as 1238 disintegrations per minute. Calculate the half-lif..
Determining the isinversely proportional : 1. Since PV = C, P isinversely proportional to V. If V is increased from 20L to 40L, P will decrease by half. When volume doubles, pressuredecrease by half.
How you would approach the situation : How you would approach the situation - What steps or actions would you or should you take and what are potential positive and negative consequences for various actions taken or not taken?
Discuss about the restorative justice : This conceptualization of shame centers on the emotions felt when standards established by familial or social institutions fail to be met. In many societies around the world shame is a powerful tool of social control, however in the United States ..

Reviews

Write a Review

Chemistry Questions & Answers

  Water has a molar heat of vaporization 4079 kjmoldetermine

water has a molar heat of vaporization 40.79 kjmoldetermine how many grams of water could be vaporized by 0.806 kilo

  Particular temperature for a solution

The absorbance value at 690 nm at a particular temperature for a solution containing CoCl4 ^2- is 0.744. the concentration of the sln containing CoCl4 ^2- is 0.0105M.

  Explain what is the fraction of patients expected

A clinic took temperature readings of 250 flu patients over a weekend as well as discovered the temperature distribution, to be Gaussian with a mean of 101.00 F as well as a standard deviation of .9530

  Define cyclohexane-toluene mixture

cyclohexane-toluene mixture, and then obtain IR spectra for each fraction. How would the IR spectrum of the first 1 mL fraction look different from that of the last 1 mL fraction?

  Explain what is the density of a gas

What is the density of a gas in g/L that has a molecular weight of 144, if the temperature and pressure is 25 degree C and 750 mmHg?

  How many oh- ions appear in the correctly balanced equation

How many OH- ions appear in the correctly balanced equation, and on which side of the arrow?

  Calculate the ph of the solution

Consider the titration of 50.0 mL of 0.217 M hydrazoic acid (HN3, ka=2.6x10^-5) with 0.183 M NaOH. Calculate the pH of the solution after the addition of 29.7 mL of NaOH solution

  Find another example of a solid-phase reagent

Find another example of a solid-phase reagent that is used in organic synthesis, and give an example of a specific reaction where it has been used. In this case, what advantage does the solid-phase reagent provide over the analogous solution-phase..

  Difference btw the theoretical and observed ramachandran

What is the most important difference btw the theoretical and observed Ramachandran plot?

  Explain what is the heat of vaporization of the liquid

A certain liquid has a normal boiling point of 80.1oC, and boils at 62.8oC when the pressure is reduced to 445 torr. What is the heat of vaporization of the liquid

  Explain solution will decrease in volume

A semipermeable membrane is placed between the following solutions. Which solution will decrease in volume. Solution A: 1.31% (m/v) starch Solution B: 7.48% (m/v) starch

  Write the structure of the conjugate acid

Consider the base monosodium phosphate and Write the structure of the conjugate acid of this base- ineffective for extracting C7H6O2 from a diethyl ether solution.

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd