Determining the sound level
Sound level within the church (1 m away from the chorus) while people are singing is around 100 dB (0.01 W/m^2). Suppose sound waves are released equally in all directions. Determine the sound level (in dB) 1 km away from church.
Expected delivery within 24 Hours
A sample which is having 1.547-g of blue copper (II) sulfate penta hydrate, CuSO4 * 5 H2O is heated carefully to drive off the water. The white crystals of CuSO4 that are left behind have a mass of 0.989 g.
2,3-Dimethyl-2,3-butanediol (pinacol), upon heating in aqueous acid, rearranges to form 3,3-dimethyl-2-butanone(pinacolone). Suggest a mechanism for this reaction.
Identify these compounds and give each a suitable name. When 1-octene is treated with NBS, three monobromo straight-chain alkenes having molecular formula C9H17Br are isolated from the reaction mixture.
Write down the equations to show nitronium ions might be produced using a mixture of nitric acid and sulfuric acids.Explain which ring of phenyl benzoate you would expect to undergo nitration more readily.
Determine the molarity of a solution of 10% by the mass cadmium sulfate, CdSO4 (molar mass = 208.46g/mol) by mass when the density of the solution is 1.10g/ml.
The mass of the particle is around 6.64 x 10-27 kg. The particle employed in a scattering experiment consists of a kinetic energy of 7.30 x 10-13 J. Determine the de Broglie wavelength of the particle?
Discuss how photochemical isomerization allows the production of the thermodynamically less stable cis isomer. Explain why is the trans isomer exclusively converted to the cis isomer during short reaction periods and not vice Versa?
Determine the work that would be done if the same expansion occurred isothermally and reversibly when a sample of methane of mass 4.50g occupies 12.7 L at 310K.
1939667
Questions Asked
3,689
Active Tutors
1442436
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Which of the following is the Army Health System principle aimed at ensuring care is available at the right time and place to keep morbidity and mortality
Which of the following are sustainment functions that man the force, maintain Soldier and Family readiness, promote the moral and ethical values of the nation
Question: Which of the following represents a principle of harm reduction? Need Assignment Help?
A badly injured Soldier arrives at a medical facility but is now non- transportable because of their injuries, so they receive resuscitative surgical care
Question: What is a key component of the SBIRT approach in addressing substance misuse?
Give an example of a case study report of a fictional character and illustrate the impact that opioid misuse has had upon them at the individual
Client talked about several updates since our last session. Client mentioned that their eating and sleeping have been good, and that their medications