Answer:
f = 5.25 x 10³⁸ s⁻¹
Explanation:
Energy = 348KJ = 348,000 J
Frequency = ?
Energy and frequency are related by the equation below;
E = hf
where h = Planck's constant = (6.626 x 10-34 J · s),
Upon making f subject of formular;
f = E / h
substituting the values, we have;
f = 348,000 / 6.626 x 10-34
f = 52,520 x 10 ³⁴ s⁻¹
f = 5.25 x 10³⁸ s⁻¹
Answer:
the change is evaporation
Explanation:
the water heats up at the surface of the water and evaporates
Answer:
Explanation:
Resonance structure occurs in an organic compound that undergoes resonance effects. This resonance effect is sometimes called the mesomeric effect helps to increases the stability of organic compounds that have alternating single bonds and double bonds.
The second resonance structure diagram for the ion given in the question can be found in the attached diagram below.
Answer:
1.123x10⁻⁴ moles of alanine
Explanation:
In order to convert grams of alanine into moles, <em>we need to know its molecular weight</em>:
The formula for alanine is C₃H₇NO₂, meaning <u>its molecular weight would be</u>:
- 12*3 + 7*1 + 14 + 16*2 = 89 g/mol
Then we <u>divide the sample mass by the molecular weight</u>, to do the conversion:
- 1.0x10⁻² g ÷ 89 g/mol = 1.123x10⁻⁴ moles
The Lewis structure of
Diimide (N₂H₂) is shown below.
In this molecule two Nitrogen atoms attached to each other through a
double bond are further attached to one one Hydrogen atom. Also, each Nitrogen atom carries one
non-binding electron pair (
Lone Pair) (Highlighted RED).
Result: Option-C (<span>each nitrogen has one nonbinding electron pair) is the correct answer.</span>