Ask a New Question

The work function for potassium

The work function energy of potassium is 2.2 eV.The surface of potassium is illuminated with electromagnetic radiation of a
1. 1 answer
2. asked by Physics Student
3. 988 views
The work function for potassium is 2.24eV.If potassium metal is illuminated with light of wavelength 310 nm, find the maximum
1. 3 answers
2. asked by Emily
3. 1,015 views
A solution contains, in each 5 mL, 0.5 g of potassium acetate (C2H3KO2, MW = 98), 0.5 g of potassium bicarbonate (KHCO3, Z =
1. 1 answer
2. 251 views
Which one of the following will have the greatest number of moles of potassium ion: 10.0 mL of .10 M potassium hydroxide, 30.0
1. 1 answer
2. asked by lori
3. 839 views
Potassium has an atomic mass of 39.10amu. a sample of potassium is made up of isotopes potassium-39 (mass=38.964) and
1. 1 answer
2. asked by Skylar
3. 1,003 views
Classify each property of potassium as either physical or chemical. Select the single best answer for each part.When exposed to
1. 1 answer
2. 75 views
A potassium metal has a work function F = 4.41 x 10-19 J. Calculate the velocity of electrons emitted by exposing the metal to
1. 1 answer
2. asked by Kevin
3. 753 views
A 5.000 gram sanple of dry mixture of potassium hydroxide, potassium carbonate and potassium chloride is reacted with 0.100L of
1. 1 answer
2. asked by Chansa
3. 937 views
a) A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg?
1. 2 answers
2. asked by Adam
3. 2,690 views
The potassium salt of benzoic acid, potassium benzoate, KC7H5O2, can be made by the action of potassium permanganate on toluene,
1. 3 answers
2. asked by Veronica
3. 3,863 views