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The equation for the decay of 22Ra is shown below. The exact mass of 220Ra is226.025...
Work shown please. Answers to the following questions: 1) 3.864 x 10^-19 J 2.412 eV 5.831...
Work shown please. Answers to the following questions:
1) 3.864 x 10^-19 J
2.412 eV
5.831 x 10^14 Hz
2) 154 pm
3) 1.94 x 10^-18 J or 12.1 eV
4) 32 electrons
Chapter 29 & 30 Homework Problem Set Use extra paper if needed 1. What is the energy (in joules and eV) and frequency carried by a photon with a wavelength of 514.5 nm? answer 2. What is the wavelength of a photon that produces a photoelectron with...
QUESTION 3 An automobile engine provides 637 Joules of work to push the pistons. In this...
QUESTION 3 An automobile engine provides 637 Joules of work to push the pistons. In this process the internal energy changes by -2767 Joules. Calculate the amount of heat that must be carried away by the cooling system. O a.-2767J b. 2130 c. 3404 J d. -2130 J O e. -3404 J QUESTION 7 kl of heat are released when 5.5 mol of HBr is formed in this reaction. The value of AH® for the reaction below is -72 k)....
A nucleus whose mass is 3.730032 x 10-25 kg undergoes spontaneous "alpha" decay. The original nucleus...
A nucleus whose mass is 3.730032 x 10-25 kg undergoes spontaneous "alpha" decay. The original nucleus disappears and there appear two new particles: a He-4 nucleus of mass 6.640678x10-27 kg (an "alpha particle" consisting of two protons and two neutrons) and a new nucleus of mass 3.663533 x 10-25 kg (note that the new nucleus has less mass than the original nucleus, and it has two fewer protons and two fewer neutrons). In these calculations, it is very important to...
Tim Question 1 1 pts Atte OM The force constant for the bond in an HCl...
Tim Question 1 1 pts Atte OM The force constant for the bond in an HCl molecule is k = 5 16 J m2. The mass of an 1H atom is 1.008 g/mol and the mass of a 35CI atom is 34.97 g/mol. Use this information to calculate the vibrational frequency, Ve, for a molecule of 1H35CI. Report your answer in units of 1/s. Question 2 1 pts The vibrational frequency for the H2 molecule is v=1.32x 1014 s 1...
Please help me answer this question it 1 question from A to J. PHY HW. •...
Please help me answer this question it 1 question from A to J.
PHY HW.
• Moments of inertia formulas are provided on the last page of this document • Show all of your work when solving equations. It is not sufficient to merely have a correct numerical answer. You need to have used legitimate equations and algebra. You also need to have correctly used the data. • Units must be specified for any isolated number, not just your final...
thx 29. Using the exact masses given below, calculate the amount of energy released (in J)...
thx
29. Using the exact masses given below, calculate the amount of energy released (in J) when one mole of 90sr decays by B decay. 90 (89.907152 amu) 9r (89.907738 amu) B particle (0.000548 amu) B) 4.3 x 108 C) 1.3 x 1010 E) 5.8 x 109 A) 5.3 x 1010 D) 8.8 x 108 30. A certain complex ion has a A (crystal field splitting) of 240 kJ/mol. What wavelength should correspond to an absorbance peak in the spectrum...
Quantized and total photon energy The particle characteristics of electromagnetic radiation are responsible for the quantized...
Quantized and total photon energy The particle characteristics of electromagnetic radiation are responsible for the quantized behavior of light energy. This behavior explains the results of varying the intensity and wavelength for an observed photoelectric effect, which describes the emission of electrons when light shines on a metal surface. If light only exhibited a purely wavelike behavior, then either increasing the intensity or decreasing the wavelength would both increase the rate at which electron are emitted. However, monochromatic light of...
Numbers 8 & 9 Please! Thank you! Consider a region of the atmosphere of volume 25...
Numbers 8 & 9 Please!
Thank you!
Consider a region of the atmosphere of volume 25 dm3, which at 20°C contains about 1.0 mol of molecules. Take the average molar mass of the molecules as 29 g mol1 and their average speed as about 400 m s1. Estimate the energy stored as molecular kinetic energy in this volume of air What is the minimum energy that a bird of mass 25 g must expend in order to reach a height...
The thermochemical equation for the reaction is shown below: 4 Al(s) + 3 O2(g) → 2...
The thermochemical equation for the reaction is shown below: 4 Al(s) + 3 O2(g) → 2 Al2O3(s) AH = -3352 kJ How much heat is released when 12.1 g of Al react with O2(g) at 25 °C and 1 atm? 0 - 104 kJ 0 -3.59 x 105 kJ -1.50 x 103 kJ O-376 kJ A 77.0-mL sample of a 0.203 M potassium sulfate solution is mixed with 55.0 mL of a 0.226 M lead(II) nitrate solution and this reaction...
A spring of negligible mass stretches 3.00 cm from its relaxed length when a force of...
A spring of negligible mass stretches 3.00 cm from its relaxed length when a force of 6.80 N is applied. A 0.510-kg particle rests on a frictionless horizontal surface and is attached to the free end of the spring. The particle is displaced from the origin to x = 5.00 cm and released from rest at t = 0. (Assume that the direction of the initial displacement is positive. Use the exact values you enter to make later calculations.) (a)...
Work shown please. Answers to the following questions:
1) 3.864 x 10^-19 J
2.412 eV
5.831 x 10^14 Hz
2) 154 pm
3) 1.94 x 10^-18 J or 12.1 eV
4) 32 electrons
Chapter 29 & 30 Homework Problem Set Use extra paper if needed 1. What is the energy (in joules and eV) and frequency carried by a photon with a wavelength of 514.5 nm? answer 2. What is the wavelength of a photon that produces a photoelectron with...
QUESTION 3 An automobile engine provides 637 Joules of work to push the pistons. In this process the internal energy changes by -2767 Joules. Calculate the amount of heat that must be carried away by the cooling system. O a.-2767J b. 2130 c. 3404 J d. -2130 J O e. -3404 J QUESTION 7 kl of heat are released when 5.5 mol of HBr is formed in this reaction. The value of AH® for the reaction below is -72 k)....
A nucleus whose mass is 3.730032 x 10-25 kg undergoes spontaneous "alpha" decay. The original nucleus disappears and there appear two new particles: a He-4 nucleus of mass 6.640678x10-27 kg (an "alpha particle" consisting of two protons and two neutrons) and a new nucleus of mass 3.663533 x 10-25 kg (note that the new nucleus has less mass than the original nucleus, and it has two fewer protons and two fewer neutrons). In these calculations, it is very important to...
Tim Question 1 1 pts Atte OM The force constant for the bond in an HCl molecule is k = 5 16 J m2. The mass of an 1H atom is 1.008 g/mol and the mass of a 35CI atom is 34.97 g/mol. Use this information to calculate the vibrational frequency, Ve, for a molecule of 1H35CI. Report your answer in units of 1/s. Question 2 1 pts The vibrational frequency for the H2 molecule is v=1.32x 1014 s 1...
Please help me answer this question it 1 question from A to J.
PHY HW.
• Moments of inertia formulas are provided on the last page of this document • Show all of your work when solving equations. It is not sufficient to merely have a correct numerical answer. You need to have used legitimate equations and algebra. You also need to have correctly used the data. • Units must be specified for any isolated number, not just your final...
thx
29. Using the exact masses given below, calculate the amount of energy released (in J) when one mole of 90sr decays by B decay. 90 (89.907152 amu) 9r (89.907738 amu) B particle (0.000548 amu) B) 4.3 x 108 C) 1.3 x 1010 E) 5.8 x 109 A) 5.3 x 1010 D) 8.8 x 108 30. A certain complex ion has a A (crystal field splitting) of 240 kJ/mol. What wavelength should correspond to an absorbance peak in the spectrum...
Quantized and total photon energy The particle characteristics of electromagnetic radiation are responsible for the quantized behavior of light energy. This behavior explains the results of varying the intensity and wavelength for an observed photoelectric effect, which describes the emission of electrons when light shines on a metal surface. If light only exhibited a purely wavelike behavior, then either increasing the intensity or decreasing the wavelength would both increase the rate at which electron are emitted. However, monochromatic light of...
Numbers 8 & 9 Please!
Thank you!
Consider a region of the atmosphere of volume 25 dm3, which at 20°C contains about 1.0 mol of molecules. Take the average molar mass of the molecules as 29 g mol1 and their average speed as about 400 m s1. Estimate the energy stored as molecular kinetic energy in this volume of air What is the minimum energy that a bird of mass 25 g must expend in order to reach a height...
The thermochemical equation for the reaction is shown below: 4 Al(s) + 3 O2(g) → 2 Al2O3(s) AH = -3352 kJ How much heat is released when 12.1 g of Al react with O2(g) at 25 °C and 1 atm? 0 - 104 kJ 0 -3.59 x 105 kJ -1.50 x 103 kJ O-376 kJ A 77.0-mL sample of a 0.203 M potassium sulfate solution is mixed with 55.0 mL of a 0.226 M lead(II) nitrate solution and this reaction...
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