Explain what is the energy in kj mol of the radiation

Reference no: EM13671984

Needs a minimum of 216.4 kJ/mol to remove an electron from a potassium metal surface. If UV lights at 227 nm strikes this surface, explain what is the maximum speed (in m/s) of the ejected electrons? (in m/s.)

Microwave ovens use radiation whose wavelength is 12.5 cm.

Explain what is the frequency (Hz) of this radiation? 23.98E8 Hz

Explain what is the energy in kJ/mol of this radiation?

Reference no: EM13671984

Questions Cloud

Explain how many grams of nacl will the nurse need : A nurse requires to prepare 125.0mL of normal saline to dissolve drugs that are to be administered IV. Normal saline is 0.92% (m/v) NaCl. Explain how many grams of NaCl will the nurse need

Explain how many grams of nabr are present in the diluted : A stock solution is 2.567 M in NaBr. A dilution is made by diluting 25.00mLs of the stock solution to a new volume of 1.500 liters. Explain how many grams of NaBr are present in the diluted solution

Explain what is the molarity of the solution : Explain a solution is prepared by dissolving 57.87 grams of NaCl in enough water to make 2525mL of solution. Explain what is the molarity of the solution

Explain what was the initial volume of gas : The temperature of an ideal gas is raised from15.0 deg C to 38.0 deg C at constant pressure. The final volume of gas is 2.79 L. Explain what was the initial volume of gas

Explain what is the energy in kj mol of the radiation : Needs a minimum of 216.4 kJ/mol to remove an electron from a potassium metal surface. If UV lights at 227 nm strikes this surface, explain what is the maximum speed (in m/s) of the ejected electrons?

Depict structural formals and give names for five isomeric : Depict structural formals and give names for five isomeric esters of formula C5H10O2. Neglect the stereoisomers.

Explain how many moles of acid are present in the lake water : Neutralization of the lake water needs 40mL of the NaOH solution. If the size of the lake can be described as 1.1 km long by 2.3 km wide and has a depth of10m, approximate how many moles of acid are present in the lake water.

Explain why is it more difficult to identify all components : Explain why is it more difficult to identify all of the components of a mixture than to identify the cation and anion in a simple salt

Explain formic acid is titrated with equivalence point : The ka for an acid is 1.8x10^-4. A 140 ml sample containing 0.5M formic acid is titrated with 0.5M of NaOH

User Account

All Pages