Answer:
P(total) = 978 mmHg
Explanation:
Given data:
Total pressure of gas = ?
Partial pressure of O₂ gas = 200 mmHg
Partial pressure of N₂ gas = 350 mmHg
Partial pressure of He gas = 428 mmHg
Solution:
According to Dalton law of partial pressure,
The total pressure inside container is equal to the sum of partial pressures of individual gases present in container.
Mathematical expression:
P(total) = P₁ + P₂ + P₃+ ............+Pₙ
P(total) = P(O₂) + P(N₂) + P(He)
P(total) = 200 mmHg + 350 mmHg + 428 mmHg
P(total) = 978 mmHg
All light being the same whether it comes from the sun a light bulb or
anywhere is False.
<h3>What is Light energy?</h3>
This is a type of kinetic energy which makes light to be visible to the eyes.
There are different sources of light which include:
• Electric bulb
Light from bulbs and Sun involve photons being emitted at different intensities which is why the light from both sources are different.
The Sun has more intensity and a different
intensities which is why the light from both sources are different.
The Sun has more intensity and a different source than the Light bulb.
Learn more about Light Energy here:
brainly.com/question/21288390
#SPJ4
The
mass of an atom comes from the protons and neutrons that are found in the
nucleus. The number of protons is the atomic number of an element. To find the
number of neutrons, subtract the atomic number from the mass of an atom. The number of atoms of an
individual element be determined by using a chemical formula and adding all of
the subscripts together after the reaction is complete. The key in the balancing of chemical reaction is to make sure that you got the
exact chemical formula of the substance that is reacting and the yielded
product. After getting the formula, identify first the hardest element/atom to
be balanced such as Na, Zn, Cl, C, O, etc. Then proceed to the easier ones such
as O, H. Make sure to note the atoms present in the molecule of the substance.
Answer : The concentration of nitrate ions is 0.450 m.
Solution : Given,
Molarity of = 0.225 m
The balanced ionic equation is,
From the reaction, we conclude that the 1 mole of produces 2 moles of ions. That means the concentration of nitrate ions is twice the value of .
then, 0.225 m of gives 2 × 0.225 of ions
Now the concentration of ions is equal to 0.450 m.