Calculate the masses of the particles at each of the spots

Assignment Help Physics

Reference no: EM13986670

Boron is the fifth element in the periodic table so it always has 5 protons. However, different isotopes of bron have 3,5,6,7, or 8 neutrons in addition to the 5 protons to make up Boron-8, Boron-10, Boron 11, ect. As a research chemist for the Borax Soap Company you have been asked to use a mass spectrometer to determine the relative abundance of different isotopes of born in a sample. You decide to accelerate a beam of singly-ionized born ions. That is they have each lost one of their orbital electons and have one unit of positive net charge.

You decide to use an accelerating porential difference of -2.68 x 10^3 volts. The boron beam then enters a uniform magnetic field that has a direction perpendicular to the boron beam. You set up your electromagnet so its magnetic field has a magnitude of .182T. You observe two bright spots on your photographic plate and with the spot corresponding to a radius of 13.00cm having one fourth the intensity of the one corresponding to a radius of 13.61 cm. There are very faint spots at 11.53 cm, 14.17 cm, and 14.81 cm.

a) Calculate the masses of the particles at each of these spots to 4 significant figures.

b) Which isotope of boron has approcimatley 80% abundance? Which one has about 20% abundance? Which ones are present in only trance amounts? Show all calculations.

Reference no: EM13986670

Questions Cloud

What is the magnitude of the tension in the rope : A box is lowered using a rope. If the acceleration of the box, is 4.4 m/s2 (downward) and its mass is 13.3 kg, what is the magnitude of the tension in the rope?

What is the probability that at least two of the dvd players : What is the probability that at least two of the DVD players are defective? What is the probability that at most one of the DVD players is defective?

Find the resonance frequency of a circuit : A series LRC circuit is driven on resonance with a driving voltage amplitude of Vo = 1 V. If the quality factor Q = 20, what is the amplitude VR (in volts) of the voltage across the resistor?

Meena chavan corp.''s computer chip production process : Meena Chavan Corp.'s computer chip production process yields DRAM chips withan average life of 1,800 hours and σ=100 hours. The tolerance upper and lower specificationlimits are 2,400 hours and 1,600 hours, respectively. Is this process capable of pr..

Calculate the masses of the particles at each of the spots : Calculate the masses of the particles at each of these spots to 4 significant figures. Which isotope of boron has approcimatley 80% abundance?

Effects of adjusting entries on the accounting equation : Prepare a table to summarize the required adjusting entries as they affect the accounting equation. Use the format in Exhibit 3-1 on page 109. Identify each adjustment by letter.

Test-statistic associated with this hypothesis : You run a coffee shop which is testing a new type of espresso maker. Your business dependson having repeat customers, so you give away samples of the espresso for free.

What is the smallest possible thickness of the fat layer : During a boring banquet you notice that the fat swimming on top of your soup is reflecting back green, What is the smallest possible thickness of the fat layer on top of your soup?

What is the mean and standard deviation : A local radio station provides morning drive-time news. They also encourage listeners to weigh in on topics. This morning the question was: how many hours do children under 12 years of age watch TV per day. What is the mean and standard deviation

User Account

All Pages