User Account

All Pages

Explain the radioactive isotope tritium decays

Assignment Help Chemistry
Reference no: EM13272120

The radioactive isotope tritium decays with a first-order rate constant k of 0.056 year-1. What fraction of the tritium initially in a sample is still present 30 years later?

A. 0.19
B. 0.60
C. 0.15
D. 2.8 x 10-38
E. none of the above

Reference no: EM13272120

Questions Cloud

Find the struck balls velocity after the collision : A billiard ball moving at 5 m/s strikes a stationary ball of the same mass. After the collision, find the struck ball's velocity (magnitude and direction) after the collision
Explain what mass of melamine c3n3(nh2)3 will be obtained : What mass of melamine, C3N3(NH2)3 will be obtained from 162.0 kg of urea, Co(NH2)2 if the yield overall reaction is 80%
What is the net cost of the education to you : Being in the program is so muc fun, you are willing to to pay a net of $5,000 for the pleasure. What is the net cost of the education to you?
Calculate the annual percentage yield : Assume George invests $83,497 in a 2 year CD with an Annual (Nominal) Interest Rate of 3.8% and 4 compoundings per year. Calculate the APY (Annual Percentage Yield/Effective Rate). Enter your response rounded to the nearest thousandth percent.
Explain the radioactive isotope tritium decays : The radioactive isotope tritium decays with a first-order rate constant k of 0.056 year-1. What fraction of the tritium initially in a sample is still present 30 years later?
Estimate the amplitude of the motion : A .115 kg mass undergoes simple harmonic motion on a horizontal spring with force constant k= 287 N/m. estimate the amplitude of the motion
Which is not a function of the foreign exchange market : Which of the following is not a function of the foreign exchange market?
Explain the reaction equation for the combustion of octane : Identify the set of stoichiometric coefficients that balance the reaction equation for the combustion of octane. C8H18+O2--->CO2+H2O
What is the current yield of the bond today : Today, a bond has a coupon rate of 10.6 percent, par value of $1000, 13 years until maturity, YTM of 12.6 percent, and semiannual coupons with the next one due in six months. One year ago, the price of the bond was $968. What is the current yield ..

Reviews

Write a Review

Chemistry Questions & Answers

  State the reaction mixture will consist of essentially

If the reaction mixture initially contains only O2(g) and F2(g), then at equilibrium, the reaction mixture will consist of essentially only OF2(g).

  Dilute solutions of sodium chloride

Dilute solutions of sodium chloride(NaCl), Sodium sulfate(Na 2 SO 4 ), and Sodium sulfide (Na2S) are available to separate the positive ions from each other., in which order the solutions should be added In order to effect separation?

  State separating eucalytus oil

Based on the structure and boiling point(176-177C) of Eucalytol. what aspects of this molecule allow it to separate from hexane? And which of the following temperature option of is best for separating eucalytus oil and why?

  Calculate [cu2+] in equilibrium

5 ml of 0.05 M CuSO4 solution was mixed with 5 ml of 3 M NH3 solution.Calculate [Cu2+] in equilibrium with Cu(NH3)4^2+. Experimentally the cell potential was found to be 0.387

  Determine the molar amounts of no and o2

Determine the molar amounts of NO, O2 and NO2 after a complete reaction. NO=? O2=? NO2=?

  State unknown quantity of gas at a pressure

If an unknown quantity of gas at a pressure of 1.2 atm, a volume of 31 liters, and a temperature of 87 C

  State the bicarbonate concentration

The pK value of the system is 6.1. If the [CO2] is expressed in terms of partial pressure and equals 1.3kPa and the bicarbonate concentration is 2.2 x 10^-3 M, what is the pH of the solution.

  Explain besides the traditional colorimetric acid

"Besides the traditional colorimetric acid/base indicators, there is another class that doesn't use color, the olfactory acid-base indicators! These compounds smell or don't smell based on their pH

  State what occurs at the molecular level of an extraction

What occurs at the molecular level of an extraction? We did an extraction of benzoic acid using NaOH and diethyl ether dried to 1, 4-dimethoxybenzoate using NaOh

  Define partial derivatives for a diatomic ideal gas

Obtain expressions for the following partial derivatives for a diatomic ideal gas, assuming that its translational, rotational, and vibrational motions all behave classically.

  Explain the freezing point depression constant for water

An aqueous potassium nitrate solution has a freezing point of -2.0 °C. How many moles of potassium nitrate are contained in 0.5 kg of water in this solution? The freezing point depression constant for water is -1.86 °C/m.

  How much heat does your body lose

How much heat does your body lose when 1.5 g of sweat evaporates from your skin at 25 C? (Assume that the sweat is only water.) The heat of vaporization of water at 25 C is 44.0 kJ/mole.

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