When it switches to a lower orbital, the atom emits energy in the form of photons.
Answer:
4560 Torr
Explanation:
<u>Boyle's Law</u>
where:
= initial volume
= final volume
= initial pressure
= final pressure
Given:
Substituting the given values into the formula:
To convert atm to Torr, multiply atm by 760:
Answer:
m = 0.544 moles/kg
Explanation:
To do this, we need to use the expression for molality of a solution which is:
m = n / kg water
Where:
n: moles of solute
m: molality of solution
In this case, we have the moles of the solute, which is the C6H12O6 and the grams of water, and these grams would have to be turn into kg. Let's do this first:
kg of water = 150 g * 1 kg / 1000 g = 0.150 kg of water.
Now, replacing in the above expression of molality, we can calculate the molality of the solution:
m = 0.0816 / 0.150
<h2>
m = 0.544 moles/kg</h2>
There must be two oxygen atoms to form covalent bond as when each oxygen atom contribute 4 electrons to the another, the atoms will become stable as they both have 8 electrons on the outermost shell. Refer to the dots and cross diagram i drew.
In pure water, the concentration of hydronium ions, or H⁺, will equal the concentration of hydroxide ions. That is [H⁺] = [OH⁻].
Remember that Kw = [H⁺][OH⁻] for water and if [H⁺] and [OH⁻] are both equal, we can easily solve for them by taking the square root of Kw.
[H⁺] = [OH⁻] = sqrt(1.47*10^-14) = 1.21*10^-7
The concentration of hydroxide ions at 30 degrees Celsius is 1.21*10^-7
