Answer:
pls explain what you are comparing and i can help
Explanation:
I think it should be 2.358
Answer:
c. The average kinetic energies of the two gases are the same.
Step-by-step explanation:
A major postulate of the Kinetic Molecular Theory is that the average kinetic energies of all gases are the same at the same temperature.
a. is <em>wrong</em>. N₂ and O₂ are different elements with different molar masses.
b. is <em>wrong</em>. According to Avogadro's Law, the partial pressure varies directly as the number of moles. There are twice as many molecules of O₂ as of N₂, so p(O₂) = 2p(N₂).
Answer:
We see that the mass number of this atom is 195. And then, atomic number, the number of protons, is 78. 195 minus 78 is equal to 117. This then is the number of neutrons in this platinum atom.
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Miss Hawaii
<u>Answer:</u> The number of moles of NaCl in the solution are 0.0875 moles.
<u>Explanation:</u>
To calculate the number of moles of NaCl, we use the equation that is used to calculate molarity, which is:
We are given:
Molarity of NaCl solution = 0.35 mol/L
Volume of solution = 250 mL = 0.250 L (Conversion factor: 1L = 1000 mL)
Putting values in above equation, we get:
Hence, the number of moles of NaCl in the solution are 0.0875 moles.
