What is the longest wavelength of light

Assignment Help Chemistry
Reference no: EM13136053

It takes 245 kJ/mol to eject electrons from a certain metal surface. What is the longest wavelength of light (nm) that can be used to eject electrons from the surface of this metal via the photoelectric effect?

Reference no: EM13136053

Questions Cloud

What do you think we should do in the “eal world : Lou was overjoyed that the deal was completed and told Judy to go out to diner with her husband and charge it to the bank as a reward for a job well done. To make it a “reimbursable” expense he told Judy to indicate she had diner with one of Ac..
Confidence interval for true proportion of all voters : Ffavor approval of an issue before the legislature. Construct the 95% confidence interval for the true proportion of all voters in the state who favor approval.
Break even point in units and in sales dollars : Kettle goods company has a unit selling price of 500 $, variable cost per unit $ 300 and fixed costs of $170,000. Compute the break even point in units and in sales dollars.
What is the company inventory turnover : A company had gross profit of $134,200 on net sales of $205,000. If ending inventory was $8,000 and average inventory was $7,080, what is the company's inventory turnover.
What is the longest wavelength of light : It takes 245 kJ/mol to eject electrons from a certain metal surface. What is the longest wavelength of light (nm) that can be used to eject electrons from the surface of this metal via the photoelectric effect?
Developing and proposing policy plan : When developing and proposing a budget for a policy plan, why is it important to address contingency plans? What strategies might you use to ensure that funds are properly allocated throughout the planning and implementation of a plan?
Examples of statistical techniques : What are examples of statistical techniques that managers can use to simulate business situations, optimize variables, and forecast sales or other figures?
What controls can cfo place to prevent them : Given the enormous responsibilities CFOs hold, they should have a good understanding of those deliberate frauds on the part of employees. Could you name some common types of frauds? What controls can CFO place to prevent them?
Find the z score for a cd player will break down : What is the z score for a cd player will break down during the guarantee period of 2 years? The statement that the cd player breaks during the 2-year.

Reviews

Write a Review

Chemistry Questions & Answers

  Find the concentration of calcium ions

find the concentration of calcium ions in a solution made by adding 3.50 g of calcium fluoride to 750ml of .125M NaF. Ksp for CaF2 is 3.95x10^-11

  How this buffer behaves when hydrochloric acid is added

you have a buffer system made up of equimolar amount of carbonic acid,H2CO3, and sodium bicarbonate,NaHCO3. Write equations to show how this buffer behaves when (a) HCL is added and (b) NaOH is added.

  Figure out the initial concentration of iron ion

I am given the 10 ml of .200M Fe(NO3)3 and .25 ml of .00200 KSCN and 14.75 ml of .500 M of HNO3. How do I figure out the initial concentration of FE3+ and SCN-.

  Calculate the mass percent of methanol, ethanol and mtbe

Calculate the mass percent of methanol, ethanol, and MTBE, that must be present in gasoline to yield a mixture of 1.8% oxygen by weight.

  Determine the empirical formula of the compound

A 1.000 g sample of a compound containing C, H and O is burned in excess oxygen, producing 1.783 g CO2 and 0.734 g H2O. Determine the empirical formula of the compound.

  How many moles of co2 are needed

if a plant produces 5.06 mol of C6H12O6, how many moles of CO2 are needed?

  Compute the concentrations of each species

what we observed that 1.00 mole Hydrogen, 1.00 mol Iodine and 1.00 mole hydrogen iodide are introduced into a container of capacity 1.00-L. compute the concentrations of each species if equilibrium is reached?

  Calculate the amount of heat liberated

Calculate the amount of heat liberated (in kJ) from 325 g of mercury when it cools from 81.9°C to 10.0°C.

  Explain advantages and disadvantages of alternative fuel

In the event of a severe and prolonged shortage of petroleum, suggest one alternative fuel that could be used for automobiles. What do you see as the advantages and disadvantages of your choice of alternative fuel?

  Compute the ka for hydrocyanic acid

A 2.5M solution of hydrocyanic acid has a measured pH of 4.5. Calculate the Ka for hydrocyanic acid and its % dissociation.

  The relationship if any of the lattice energy of compounds

The relationship (if any) of the lattice energy of compounds such as ZnO vs. H3BO3 vs. their respective solubilities. For instance, at neutral pH and standard conditions

  What mass of oxygen is needed

when 31g of phosphorus reacts with oxygen, 71g of an oxide phosphorus is the product. What mass of oxygen is needed to produce 13g of this product?

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