Answer:
0.125 mole
Explanation:
From Avogadro's hypothesis, we discovered that 1 mole of any substance contains 6.02x10^23 atoms.
The statement above suggests that 1 mole of chromium contains 6.02x10^23 atoms.
Now, if 1mole of of chromium contains 6.02x10^23 atoms,
Then Xmol of chromium contains 7.52x10^22 atoms i.e
Xmol of chromium = 7.52x10^22/6.02x10^23
Xmol of chromium = 0.125 mole
Therefore, 0.125 mole of chromium contains 7.52x10^22 atoms
Answer: 34.27903 km
Explanation: for an approximate result, multiply the length value by 1.609 to 21.3 to get answer.
PV
= nRT
We
are solving for pressure. We are given the volume, which is 0.100 L (equivalent
to 100 mL). The temperature is 273.15 K (equivalent to 0 Celsius). All we need
to do is convert the grams to moles before we can solve for pressure.
N₂
has a molecular mass of 28.02. This means that 510 g N₂ * (1 mole N₂/28.02 g
N₂) = 18.2 moles N₂
PV
= nRT
P
= nRT/V
R
is the gas constant. R = 0.08206 atm*L/(K*mol)
P
= (18.2 mol)*(0.08206 atm*L/(K*mol))*(273.15 K) / (0.100 L)
<span>P
= 4.08 *10^3 atm</span>
<span>
</span>
<span>The pressure is 4.08*10^3 atm.</span>
Answer:
False their found outside of nucleus
Explanation:
