Answer: B) 44.0 g/mol
Explanation:
To solve this problem we use the law of ideal gases, according to which
,
PV = nRT
where P, V, n and T are the pressure, volume, moles and temperature of the gas in question while R is the constant gas (0.082057 atm L / mol K)
The molar mass (MM) of a substance is given by
MM = m / n
where m is the mass of the substance. So,
n = m / MM
Substituting in the ideal gas equation we have
PV = () RT → MM =
→ MM =
→ MM = 44.0 g/mol
Answer:
Nitrogen has 7 electrons as well as 7 neutrons. the atomic number represents the number of electrons in an atom
There are a couple components that would be useful to learn here.
<u>Proton</u> - positively charged
<u>Neutron</u><u /> - neutral (no charge)
<u>Electron</u><u /> - negatively charged
These three subatomic particles and their charges are essential to know when learning/discussing components of an atom.
Therefore, your answer will be an electron.
Answer is: the amu of a sodium atom is 23.
The unified atomic mass unit (amu) is a standard unit of atom mass.
One unified atomic mass unit is approximately the mass of one nucleon (proton or neutron).
The unified atomic mass unit is equal 1.66·10⁻²⁷ kg.
n(p⁺) = 11; number of protons in sodium atom.
n(n°) = 12; number of neutrons of sodium atom.
n(p⁺ + n°) = 11 + 12.
n(p⁺ + n°) = 23; number of nucleons in sodium atom.
Hello there.
<span>A roller coaster starts down a hill at 10 m/s. Three seconds later, its speed is 32 m/s. What is the roller coaster’s acceleration?
</span><span>7.3 m/s 2
</span>