The minimum frequency of light needed to eject electrons

Assignment Help Chemistry
Reference no: EM13190353

The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ?0. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 5.73 × 10^14 s-1.

With what kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of ? = 245 nm?

Reference no: EM13190353

Questions Cloud

What is the volume of the brine in the tank at the time t : A tank initially contains 10 gallons of brine in which 3 pounds of salt are dissolved. A brine containing 2 lb/gal of salt runs into the tank at the rate of 2 gal/min. The mixture is well stirred and ows out of the tank at the rate of 1 gal/min.
Determine the salary for continue the interviewing process : BK Books is an online book retailer that also has 10,000 "bricks and mortar" outlets worldwide. You are a risk-neutral manager within the Corporate Finance Division and are in dire need of a new financial analyst. You only interview students from ..
Smokers vs nonsmokers : Write a interoffice memo to all department managers of Foods, a large food products company. Announce the new rstriction, and tell the managers that you want to set up departmental committees to mediate any smoking conflicts before complanits surfact..
What is the decay constant : After 10 hours of radiation decay 50mg of a substance remains. After 15 hours 30mg remained.
The minimum frequency of light needed to eject electrons : The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ?0. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 5.73 × 10^14 s-1.
Calculate and analyze smm companys ratios : Fixed Assets Property, plant, and equipment $2,200 $1,870 $1,814 $1,422 $1,400 Less: Accumulated depreciation $400 $200 $180 $80 $75 Net property, plant, and equipment $1,800 $1,670 $1,634 $1,342 $1,325 Intangible assets $300 $240 $220 $210 $205
Losing market share in e-book retailing : Do you think Amazon should be concerned about losing market share in e-book retailing and what are the implications for its pricing decisions?
Compound is allowed to burn in the presence of oxygen : allowed to burn in the presence of 16.00 g of oxygen. How much (in grams) CH4, O2, CO2, and H2O remain after the reaction is complete?
How many boxes did the troop sell : Elena's daughter sold 18 boxes of Girl Scout cookies. she was told that this amount represented 5% of the trop's sale. How many boxes did the troop sell?

Reviews

Write a Review

Chemistry Questions & Answers

  Draw a lewis structure

Draw a Lewis structure for each of the following molecules, and then use the VSEPR theory to predict the molecular deometry of each.

  Explain solid sodium hydroxide and carbon dioxide gas

a 12.09-g sample of solid sodium bicarbonate completely decomposes into solid sodium hydroxide and carbon dioxide gas when heated.

  What is the molality of a solution

what is the molality of a solution of 10g benzophenone and 1mL of cyclohexanone

  Stae the reaction occurs and the temperature returns

After the reaction occurs and the temperature returns to 22°C, what is the pressure inside the flask? (Neglect the volume of the solid product.)

  How many liters of hydrogen will be required

if 11.2 L of N2 are reacted to form NH3 at STP, how many liters of hydrogen will be required to consume all of the nitrogen

  Compute the vapor pressure of a solution

Calculate the vapor pressure of a solution containing 28.5g of glycerin (C3H8O3) in 125mL of water at 30.0 ?C. The vapor pressure of pure water at this temperature is 31.8 torr.

  How may ml of 0.450 n sodium hydroxide would be required

A vinegar sample contained 5.20 % acetic acid. How may mL of 0.450 N sodium hydroxide would be required to titrate 25.00 mL of the vinegar sample

  What is the final temperature of the block

If the aluminum block is initially at 25^C, what is the final temperature of the block after the evaporation of the alcohol? Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol ..

  What is the volume of the solution

7.04 g of CuNO3 is dissolved in water to make a 0.300 M solution. What is the volume of the solution.

  What volume of it is needed to add to water

Methyl alcohol (CH3OH) has a density of 0.793 kg/L. What volume of it is needed to add to water to make 5 liters of 0.250 M solution?

  Explain how to name and define acids

How to Name and Define Acids, How can you know that HNO3 is nitric acid and HNO2 is nitrous acid? How do you know the difference in endings?

  How many grams of total blood cholesterol

a typical person has 200 mg of cholesterol pr 100 ml of blood. If the total blood volume of an individual is 5 liters, how many grams of total blood cholesterol does the individual contain?

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd