The threshold frequency for dislodging an electron from a zinc metal surface is 8.54 x 10^14 Hz. Calculate the minimum amount of energy required to removed an electron from the metal.

Q: According to valence bond theory, which orbitals overlap to form the bond in HBr   1. 2s on H and...

A: The valence bond theory is used to describe the bonding which is present in organic molecules. In th...

Q: Based on your answer in Part A (0.1 mol 13C), calculate the number of atoms in this amount of 13C?

A: One mole of any elements contains Avogadro number of atoms.  Avogadro number is 6.022*1023.

Q: A 4.0 m H2 S O3 solution would have what mass percent of H2 S O3 in this solution? The molar mass of...

A: Mass percent of H2SO3 need to calculate with the help of molality of given solution.

Q: What goal is accomplished by standardizing  solutions?

A: Standard solution is made from a solute of known amount to prepare a solution of known concentration...

Q: Find the energy released (in GJ/mol) during the following fusion reaction. Masses shown are in amu. ...

A: In nuclear fission and fusion reaction, energy released is calculated using the Einstein’s equation ...

Q: 5. In CIF3, the electron pairs are arranged about the chlorine atom in a. a square plane. b. a tetra...

A: The electronic configuration of chlorine and fluorine atoms in ClF3 is written as follows:

Q: CH4(g) + 2O2(g) CO2(g) + 2H2O(l) This  reaction occurs spontaneously as written when all reactants a...

A: Step 1: The standard Gibbs energy change for a process is defined as a change in which the reactants...

Q: What is a valence electron and why are they important to a chemist, and there for all of life?

A: Valence electrons are the electrons in the outermost energy level of an atom in the energy level tha...

Q: Which of the following reactions will occur spontaneously as written?   A. 3Fe2+(aq) + Cr3+(aq) -&gt...

A: The relationship between ΔGo and Eo is shown below,ΔGo = -nFEo