What is the longest wavelength of light

Assignment Help Chemistry
Reference no: EM13687977

Problem- It takes 251 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?

Illustrate structures to prove your rezoning.

Reference no: EM13687977

Questions Cloud

Calculate the concentrations of all species in a na2so3 : Problem- Calculate the concentrations of all species in a 0.290 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
Propose a reason for why 2,4-dnp or semicarbazone : Problem- Propose a reason for why 2,4-DNP or semicarbazone derivates usually precipitate out of their ethanolic solutions.
Explain why pan concentrations often peak : Problem- A by-product of Ethane C2H6 oxidation by O2 is acetaldehyde C2H4O. Acetaldehyde then produces a chemical called peroxyacetal nitrate or "PAN" (C2H3O3NO2), a nasty eye irritant.
Explain if glucose is transparent to visible light at 400wv : 3 charts are shown a.Absorbance at 2.0, b.absorbance at 0, and c.absorbance curve at 1 trending down to 0 all on the 400 to 700 scale. So if glucose is transparent to visible light at 400-700 wv. What would absorbance would be
What is the longest wavelength of light : Problem- It takes 251 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
Liquid sodium is being considered as an engine coolant : Problem- Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 8.90 MJ of energy (in the form of heat) if the temperature of the sodium is not to increase by more than 10.0 °C? Use C..
What product could get if use lindlar catalyst : Problem- If I were to use 3,10-dimethyldodec-6-yne with 1) H2, LIndlar catalyst then 2)o3 then 3) Zn, CH3CO2H, What product could I expect to get?
Look up the color of the salts lino3 : Problem- Question 2. Look up the color of the salts LiNO3, KNO, Sr(NO3)2, Ga(NO3)3.
How many moles of naoh are required to increase the ph : Problem- A buffer contains 0.50 mol NH4+ and 0.50 mol NH3 diluted with water to 1.0 L. How many moles of NaOH are required to increase the pH of the buffer to 10.00? (pKa of NH4+ = 9.25)

Reviews

Write a Review

Chemistry Questions & Answers

  Explain what is the age of the tool

The amount of isotope reduces in a first-order process. If 19.0% of the original amount of 14C is present in a wooden tool at the time of analysis, explain what is the age of the tool. The half-life of 14C is 5730 yr.

  Find out molar mass of compound

A compound has an empirical formula of CH2Br and vapor density of 6.00 g/L at 375K and .983 atm. Determine molar mass of compound

  0644 grams each of carbon monoxide water and hydrogen are

0.644 grams each of carbon monoxide water and hydrogen are sealed in a 0.987 litres vessel and brought to equilibrium

  Explain and balance an equation

Complete and balance an equation describing each of the above reactions. (Use the lowest possible coefficients. Omit states-of-matter in your answer.)

  Define the balanced neutralization reaction

Write the balanced neutralization reaction between H2SO4 and KOH in aqueous solution. Phases are optional.

  State aluminum nitrate being paired with water as a solid

HNO3 has 2 dissociating ions whereas Al(NO3)3 has 4, which should result in a higher conductance value. Would this have something to do with aluminum nitrate being paired with water as a solid?

  Determine the rate law and the rate constant

For the decomposition of 10.9 Pa azomethane, CH3N2CH3, at 600 K the partial pressure is found

  State the value of the equilibrium constant k

the value of the equilibrium constant K(pressure) is 0.2230. If a sealed vessel contains an initial reaction mixture of N2 = 0.0100M, H2= 0.0200M and N2H2= .000150M what will N2H2(M) be when equilibrium in reached.

  Compute the total binding energy of the nucleus

The rest mass of a proton is 1.0072764669 u and that of a neutron is 1.0086649156 u. The 75As nucleus weighs 74.92160 u. Calculate the total binding energy of the nucleus.

  Suppose that 090 grams of water condenses on a 750 grams of

suppose that 0.90 grams of water condenses on a 75.0 grams of block of iron that is initially at 20 degrees celcius.

  Define the structure of the aldehyde

Mixed Aldol Each of the following compounds can be prepared by a mixed aldol condensation reaction. Give the structure of the aldehyde and/or ketone precursors for each aldol product and formulate the reaction.

  State a reaction mechanism for the dehydration

Write a reaction mechanism for the dehydration of 4,5-dimethyl-3-hexanol in concentrated phosphoric acid. Use curved arrows to show electron movement and clearly show the major product formed.

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