Answer to Question #94554 in General Chemistry for Bianca

General Chemistry

Question #94554

What is the work function of gold metal in kJ/mol if light with = 234 nm is necessary to eject electrons?

Expert's answer

E = hc/λ

E= (6.626 x 10^-34 x 3 x 10^ 8) 1x10^9/234=2.83162393x10^-19 J= 2.83162393x 10^-22

2.83162393x 10^-22 x 6.02 x 10^23 = 170.463761 kJ/mol

Learn more about our help with Assignments: Chemistry

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. Solve the following problems. Write balanced molecular and net ionic equations for the acid base n
2. 2.00g H2 is allowed to react with 9.88g N2, producing 1.57g NH3 What is the theoretical yield in gr
3. A 50.00 -g sample of metal at 78.0°c is dropped into cold water. If the metal sample cools to 17.0�
4. A student prepared 750 mL of a stock solution of 0.1 M NaOH from solid NaOH and deionized water. To
5. If your body develops a charge of -13 μC (microcoulombs), how many excess electrons has it acquired
6. Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction i
7. A kitchen oven has an interior volume V of 0.12 cubic meter. The initial pressure P inside the oven