Answer:
Explanation:
The wavelength of a wave can be found by using the formula
where
c is the speed of the wave
f is the frequency
From the question we have
Hope this helps you
How might this local environmental change affect people living in the East Coast of the United State
1 answer:
You might be interested in
Answer:
The empirical formula of the compound is .
Explanation:
We need to determine the empirical formula in its simplest form, where hydrogen () is scaled up to a mole, since it has the molar mass, and both carbon (
) and oxygen (
) are also scaled up in the same magnitude. The empirical formula is of the form:
Where ,
are the number of moles of the carbon and oxygen, respectively.
The scale factor (), no unit, is calculated by the following formula:
(1)
Where:
- Mass of hydrogen, in grams.
- Molar mass of hydrogen, in grams per mole.
If we know that and
, then the scale factor is:
The molar masses of carbon () and oxygen (
) are
and
, then, the respective numbers of moles are: (
,
,
)
Carbon
(2)
Oxygen
(3)
Hence, the empirical formula of the compound is .
B. 11,540
<h3>Further explanation </h3>The atomic nucleus can experience decay into 2 particles or more due to the instability of its atomic nucleus.
Usually radioactive elements have an unstable atomic nucleus.
General formulas used in decay:
T = duration of decay
t 1/2 = half-life
N₀ = the number of initial radioactive atoms
Nt = the number of radioactive atoms left after decaying during T time
Nt=25 g
No=100 g
t1/2=5770 years