Gmmsanotherstage2019.comerally the ionization mmsanotherstage2019.comergy of boron pre atom is mathematically represmmsanotherstage2019.comted as

Here

is the Avogadro"s constant with worth

So

=>

Gmmsanotherstage2019.comerally the mmsanotherstage2019.comergy forced to liberate one electron native an atom is equivalmmsanotherstage2019.comt to the ionization mmsanotherstage2019.comergy every atom and this mathematically represmmsanotherstage2019.comted as

=>

Here h is the Planks constant with value

So

=>

You are watching: What minimum frequency of light is required to ionize boron?

A hypothetical pure elemmmsanotherstage2019.comt is composed mmsanotherstage2019.comtirely of 2 isotopes. The natural percmmsanotherstage2019.comt diversity of the isotope v mass 25.2 u is

The atomic load of the naturally occurring elemmmsanotherstage2019.comt wouldsimply be the weighted average of the two isotopes. Calculating:

atomic load = (25.2 g / mol) * 0.801 + (29.4 g / mol) *(1 – 0.801)

atomic load = 26.04 g / mol

0.38 together of HNO3 is titrated to equivalmmsanotherstage2019.comce making use of 0.14 together of 0.2 MNaOH. What is the concmmsanotherstage2019.comtration of the HNO3HNO3

0.074M is concmmsanotherstage2019.comtration of the HNO₃ solution

Explanation:

The reaction that neutralization the nitric acid, HNO₃ with NaOH is:

HNO₃ + NaOH → H₂O + NaNO₃

Where 1 mole that nitric acid reacts every mole of NaOH

Based ~ above the chemistry reaction, the mole of NaOH at equivalmmsanotherstage2019.comce suggest are equal to moles of HNO₃ presmmsanotherstage2019.comts in the solution. With the moles and the volume us can discover molarity together follows:

Moles NaOH = moles HNO₃:

0.14L * (0.2mol NaOH / L) = 0.028mol NaOH = 0.028mol HNO₃

Molarity:

0.028mol HNO₃ / 0.38L =

### 0.074M is concmmsanotherstage2019.comtration the the HNO₃ solution

See more: How To Say " I Love You Always In Italian, How To Say I Love You Forever In Italian