3. Radioactive material is known to decay at a rate proportional to the amount present. Initially there are 200 kg present and after 10 years, it has lost 2% of its original amount. Determine the mass after 15 years. Ans. 194.03 kg dP / dT = -kP

3. Radioactive material is known to decay at a rate proportional to the amount present. Initially there are 200 kg present and after 10 years, it has lost 2% of its original amount. Determine the mass after 15 years. Ans. 194.03 kg dP / dT = -kP

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: For the equation 2K + Cl2------>2KCl. I understand Cl is diatomic , but where does the 2 in front of…

A: 2K + Cl2 ------> 2KCl Two potassium atoms react with one molecule of chlorine to form two…

Q: Calculate the solubility at 25 °C of PbCrO4 in pure water and in a 0.0190 M Na₂CrO4 solution. You'll…

Q: Do exothermic or endothermic reactions have a greater tendency to be spontaneous, and why? IUse the…

A: A spontaneous reaction take place without any external input to the system. It can also be defined…

Q: There is actually something im confused about, when you calculating V0 for S0=200uM --> V =…

A: Actually, that is a typo that needs correction. Since we are calculating the initial reaction rate,…

Q: Temperature of distilled H₂O Initial Buret Volume Final Buret Volume Mass of Beaker Measured Total…

A: Given,Temperature of distilled H2O = 22oCDensity of water at T ( 22oC) = 0.997724g/mLTrial 1Trial…

Q: Sketch the Stirling cycle on a PV diagram and label each of the processes (eg. isothermal…

A: We have to draw the Stirling cycle on the PV diagram and also we have to label each process.

Q: Question 17: Determine the main product of the reaction in Figure 17. How many secondary carbon…

A: Question 17: The main product of the reaction can be shown below,

Q: Pb(s) + 2Cu (aq) → Pb²+ (aq) + 2Cu(s) E° = 0.450 V, what is the value of Ecell when Cut = 2.00M and…

A: The relation between Ecell and E0cell is given by Nerst's equation. n is the number of electrons…

Q: Question 15: Give the preferred IUPAC name of the haloalkane in Figure 15. [Use lowercase letters.…

A: Question 15:

Q: STARTING AMOUNT X How many g CH. (methane) must be fully combusted according to the following…

A: Given : chemical reaction Heat released = 882 kj

Q: prove, that for subsequent follow-up reaction-intermediat applies: d dcв¸ ek₂t + k₂CBek₂t = =…

A: The given formula can be used by applying the following rules of differentiation-Product rule: ;…

Q: Solution: Kso=1.41-10-11 The resistance of a saturated solution of PbSO4 (very insoluble salt) at…

Q: For the reaction pictured, the experimental enthalpy is -41.3 ± 1.3 kJ mol-1. When using the…

A: The correct answer is given below

Q: Find Cas/aT) in terms of measurable. Properties CP-V-T)

Q: The "Instant Heat Pack" above uses a chemical reaction to produce thermal energy. Once the pack is…

A: The 'Instant heat pack' uses a chemical reaction to produce Thermal energy. These packs work by…

Q: (C) Determine the concentration of unknown K3FE(CN)6 solution from the cyclic voltammograms at…

Q: which version of the specific heat equation is both correct and is set up to solve for the final…

Q: 2.3 Fill in the missing starting material, reagents or products for the following reactions: (4)…

A: It is SN2 product

Q: The concentration of a NaOH solution is determined in a single experiment by titrating a weighed…

A: (a)When KHP is titrated with NaOH, the following reaction occurs:

Q: (8) A structural steel l-beam is 15m long when installed at 200C. How much will its lengn change…

A: To determine the change in length the formula used is: ∆L =αLο∆T ∆L = change in length α = linear…

Q: If Q=96500 Coul and t=8 min ,then I will be The value of Z for the electrolyte ZnCl2 will be O…

A: The given data: Q = 96500 C Time = 8 min= 480 seconds To determine = I and Z value.

Q: a) Convert 2000 ft-lb/sec to Btu/min b) Convert 300 kPa to kg/cm?

A: Symbol for foot pound per second is ft-lb/sec. Symbol for British thermal unit/minute is Btu/min.

Q: HW2/: For Methane air diffusion flame, the governing equation of the mixture fraction is given as:…

Q: (C) Determine the concentration of unknown K3FE(CN)6 solution from the cyclic voltammograms at…

A: Generally, Cyclic voltammetry is often performed in an electrochemical study of a compound,…

Q: dN = 47(- N MV². -)dv 2RT M 3/?v² exp(- 2 TRT F(V)dV = Find the Vm value by considering the…

A: The given relation is as follows, F(V) dV = dNN = 4πM2πRT3/2 expMV22RT dV

Q: For three component system, the region of 2 layers formed from HA and water Select one True False…

A: Dilute acid and water form a phase diagram which involves a eutectic point. It is a three-component…

Q: Can you please walk me through how they got 7.2 x 10^ - 4?

A: Here, the value of x (x = 4.50Pa) is calculated by using the equilibrium, K expression of the…

Q: HW1: For diffusion flame if mixture fraction governing equation is given as: az = D at ax2 a2z az +…

A: 1. As per the given differential equation,

Q: E Lakerrya Wash - Argum X A Classwork for 8th Block x E Lakerrya Wash - Harriso x O Launch Meeting -…

A: Balance the following reaction

Q: c. Use the table space below to calculate k by linear regression. . c(NiCl₂) (M) 0.273 0.2047 A…

Q: Given the below [S] and V determine Km, Kcat and Vmax (E] =3.8e M. Attach spreadsheet. [S] V 1.25…

A: It is example of enzyme kinetics we are required to determine Vmax ,Km, Kcat for the given data

Q: Determine if the indicated experimental change (on left) would cause an increase, decrease or no…

A: Answer A positive enthalpy of solution results in an…

Q: Recuctia

Q: Given the line notation: Pt(s) |X*(aq), X< (aq) || Y34 (aq) |Y(s) where: x2+ + e → x+ E° = 0.48 V…

A: Standard cell potential is calculated by the formula EMF = E°red (cathode) - E°red (anode)

Q: (C) Determine the concentration of unknowWn K3FE(CN)6 solution from the cyclic voltammograms at…

Question

I need solution using the dP/dT = -kP

3.
Radioactive material is known to decay at a rate
proportional to the amount present. Initially there
are 200 kg present and after 10 years, it has lost
2% of its original amount. Determine the mass
after 15 years.
Ans. 194.03 kg
dP / dT = -kP

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

Please input complete solution
Urgent Please,Thank you.
The voltammogram below is recorded at a Au RDE (area 0.2 cm?, rotation rate 3600 rpm) for a solution containing 100 mM Ce* + 50 mM Ce³3+ in 3 M CH3SO3H in H2O. I/mA 0.04 (5) 0.02 (4) 0.00 -500 500 1000 1500 E vs SCE/mV (3) -0.02 (2) -0.04 (1) (a) Identify all the electrode reaction taking place (1–5) and indicate the rate-determining steps. (Use the 'electrochemical series'.)
3. At 273 K and 105 Pa, the value of n for He is 1.88 x 10-5 Pa s. Calculate ii. The collision diameter. ii. The diffusion coefficient.
I need an answer quickly please
please help, I'll rate your answer
Ident BLOCKED LXJ517 Type GLST CL30 To SCHEDULED DEPARTURES (MORE) Philadelphia Intl ((QZPHAL)) Youngstown/Warm (C) Bb Upload Assignment: Experiment X Bb 2131146 + Q X + prod-fleet02-xythos.content.blackboardcdn.com/611c28c9987f5/2131146?X-Blackboard-Expiration=1665187200000& 2. Calculate the density of the solution described in Question 1. Depart | CD | A swiser 7 1. If the following mass and volume data are used to calculate the density of the solution, how many significant figures are allowed in the calculated density? Mass of solution = 12.53 g; volume of solution = 8.27 mL. Aurive 8
M [ NCHE 121 1-1 P 2020 - Announ E NCHE 121 - Module test - Versio x O (1) WhatsApp A docs.google.com/forms/d/e/1FAlpQLSeaeyD2qYYYa712LcEehfMLha7DEaTq1KXQ5g7o2byUrT8CnA/formResponse E Apps M Gmail O YouTube A Maps Question 2: What is the preferred IUPAC name of the alkene in Figure 2? [Use lowercase letters. Do not use spaces if it is not required in the name.] * trans-3,4-dimethylhept-3-ene Figure 2 CH3 CH2- CH2-CH, CH3-CH2 CH3 Question 3: Which one of the alkenes in Figure 3 can form a tertiary carbocation? O Alkene A O Alkene B O Alkene C O Alkene D O None of these alkenes can form a tertiary carbocation. ENG INTL 2020/12/08 12:19 P Type here to search
thos.learn.cloudflare.blackboardcdn.com/5f7d95ffb29e2/2503155?X-BIlackboard-Expiration=D1619017200000&X-B.. E Q * * Cheap Instagra. y! Canvas - Yahoo Sea.. 1 / 2 114% 3. The AGO for the reaction Citrate → Isocitrate is +6.64 kJmol-1. The AGo' for the reaction Isocitrate → a-Ketoglutarate is -267 kJmol-1. Calculate the AGo' for the conversion of citrate to a-ketoglutarate? 1 |Page Is that reaction exergonic or endergonic, and why? 10:17 PM 4/21/2021 F5 F6 & F7 FB F9 F10 F11 F12 Backspace Delete 7 9. Y { 5
12, calculate Ecell in volts. Ecell=_______V Sn(s)|Sn2+(aq, 0.0024M) || Ag+(aq, 2.4M) | Ag(s) +0.94 -1.1 +1.1 +1.0 -1.0 +0.11
For isothermal transformation of an iron-carbon alloy of eutectoid composition, sketch a sample path to produce 25% fine pearlite, 37.5% bainite, and 37.5% martensite. 800 A 1400 Eutectoid temperature 700 A 1200 600 P 1000 500 В 800 400 A 300 600 M(start) 200 M + A 50% 400 M(50%) M(90%) 100 200 101 1 10 102 103 104 105 Time (s) Temperature (°C) Temperature (°F)
can you solve this problem?