User Account

All Pages

Explain what is the purpose of placing a lead apron

Assignment Help Chemistry
Reference no: EM13249511

a) as a scientist you sometimes work with radioisotopes. what are three ways you can minimize your exposure to radiation. b)why are cancer cells more sensitive to radiation than nerve cells? c)what is the purpose of placing a lead apron on a person who is receiving routine dental X-rays? d)why are the walls in a radiation lab built of thick concrete blocks?

Reference no: EM13249511

Questions Cloud

Explain what volume of the solution is required : What volume of this solution is required to make 1.50 L of 2.75 mol/L NH3(aq)? Give your answer in millilitres, accurate to three significant figures.
List dimensions of planning and administration competency : List four dimensions of "Planning and Administration Competency" a manager should have in order to fulfill his/her managerial responsibilities.
Find the impulse response in n domain : The transfer function (TF) of a system is given below. Find its impulse response inn domain. Hint: First multiply the TF by the z-transform of input-or x(z)-or the z-transform of unit impulse. Factor the denominator and then expand.
State what is the molarity of c6h12o6 in an aqueous solution : What is the molarity of C6H12O6 in an aqueous solution that is prepared by dissolving a 20.95 g sample of impure C6H12O6 in water to make 1,450 mL of solution.
Explain what is the purpose of placing a lead apron : what is the purpose of placing a lead apron on a person who is receiving routine dental X-rays? d)why are the walls in a radiation lab built of thick concrete blocks
Determine what is the bit transmission rate : In a PCM system, the number of quantization levels is 16 and the maximum lsignal frequency is 4 kHz.;what is the bit transmission rate.
Define how many minutes will it take to plate out : How many minutes will it take to plate out 16.22 g of Al Metal from a solution of Al^+3 using a current of 12.9 amps in an electrolytic cell
What mass of water has collected in the car : A 5570kg open train car is rolling on frictionless rails at 23.6m/s when it starts pouring rain. What mass of water has collected in the car
Why the strategy for a for-profit company : Give and justify one reason why the strategy for a for-profit company could be supported by creating an ethical culture similar to that of Goodwill. Give and justify one reason why a for-profit company might have difficulty creating such a culture..

Reviews

Write a Review

Chemistry Questions & Answers

  Compute the equilibrium pressure of n2o4

calculate the equilibrium pressure of N2O4(g) and NO2(g). (c) What percentage (by moles) of the original N2O4(g) is dissociated at the new equilibrium position (total pressure = 1.00 atm)?

  State a balanced thermochemical equation

When Fe(s) reacts with HCl(aq) to form FeCl2(s) and H2(g), 7.40 kJ of energy are evolved for each mole of Fe(s) that reacts. Write a balanced thermochemical equation for the reaction with an energy term in kJ as part of the equation.

  Explain how many moles of acid can the antacid counteract

If 5.20mL of 0.1000 M NaOH solution is needed to just neutralize excess acid after 20.00 mL of 0.1000 M HCl was added to 1.00 g of an antacid, how many moles of acid can the antacid counteract per gram?

  What property of the product molecules seems

Explain the order of elution you observed while performing the gas chromatography for this experiment. What property of the product molecules seems most important in determining relative retention times?

  What is the predicted freezing point of solution

A skyscraper in Pittsburg, built in the early 1970's, is supported by water filled columns. Potassium carbonate was added to the water to precent freezing during cold weather. If the solution is 40.0% K2CO3 by mass, what is the predicted freezing ..

  Explain how many moles of silver metal are produced

How many moles of silver metal are produced in 1.2 hours by the electrolysis of AgNO3(aq) using a current of 6.0 A

  Supposing the earth is a perfect sphere

Assuming the earth is a perfect sphere with a radius of 6371 km and an atmosphere that extends from the surface to an altitude of 20 km determine the number of metric tons of the elements/compounds+

  Write and balance the molecular equation

Mixing 1.0 M BaCl2 + 1.0 M K2SO4 gives what white participate. Write and balance the molecular equation.

  Solution behave differently at different higher temperatures

H3PO4 behaves differently at different higher temperatures, give details of reaction that occurs at different temperatures

  What is the new volume

At standard temperature, a gas has a volume of 335 mL. The temperature is then increased to 123 degrees celcius, and the pressure is held constant. What is the new volume

  Explain what will be the consequences of rotation

A C-C bond in ethane is free to rotate but a 'C=C' in ethene is not. Why? What will be the consequences of rotation of 'C=C'. Explain with appropriate orbital diagram

  Calculate the volume of the unit cell of sodium

The element Na has bcc packing with a body-centered cubic unit cell. The density of sodium is 966 kg/m3. Calculate the volume (m3) of the unit cell of sodium.

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