Answer:could u expand on the question
Explanation:
Answer: A pressure of 0.681 atm would be exerted by 0.023 grams of oxygen
if it occupies 31.6 mL at
.
Explanation:
Given : Mass of oxygen = 0.023 g
Volume = 31.6 mL
Convert mL into L as follows.
![1 mL = 0.001 L\\31.6 mL = 31.6 mL \times \frac{0.001 L}{1 mL}\\= 0.0316 L](https://tex.z-dn.net/?f=1%20mL%20%3D%200.001%20L%5C%5C31.6%20mL%20%3D%2031.6%20mL%20%5Ctimes%20%5Cfrac%7B0.001%20L%7D%7B1%20mL%7D%5C%5C%3D%200.0316%20L)
Temperature = ![91^{o}C = (91 + 273) K = 364 K](https://tex.z-dn.net/?f=91%5E%7Bo%7DC%20%3D%20%2891%20%2B%20273%29%20K%20%3D%20364%20K)
As molar mass of
is 32 g/mol. Hence, the number of moles of
are calculated as follows.
![No. of moles = \frac{mass}{molar mass}\\= \frac{0.023 g}{32 g/mol}\\= 0.00072 mol](https://tex.z-dn.net/?f=No.%20of%20moles%20%3D%20%5Cfrac%7Bmass%7D%7Bmolar%20mass%7D%5C%5C%3D%20%5Cfrac%7B0.023%20g%7D%7B32%20g%2Fmol%7D%5C%5C%3D%200.00072%20mol)
Using the ideal gas equation calculate the pressure exerted by given gas as follows.
PV = nRT
where,
P = pressure
V = volume
n = number of moles
R = gas constant = 0.0821 L atm/mol K
T = temperature
Substitute the value into above formula as follows.
![PV = nRT\\P \times 0.0316 L = 0.00072 mol \times 0.0821 L atm/mol K \times 364 K\\P = \frac{0.00072 mol \times 0.0821 L atm/mol K \times 364 K}{0.0316 L}\\= 0.681 atm](https://tex.z-dn.net/?f=PV%20%3D%20nRT%5C%5CP%20%20%5Ctimes%200.0316%20L%20%3D%200.00072%20mol%20%5Ctimes%200.0821%20L%20atm%2Fmol%20K%20%5Ctimes%20364%20K%5C%5CP%20%3D%20%5Cfrac%7B0.00072%20mol%20%5Ctimes%200.0821%20L%20atm%2Fmol%20K%20%5Ctimes%20364%20K%7D%7B0.0316%20L%7D%5C%5C%3D%200.681%20atm)
Thus, we can conclude that a pressure of 0.681 atm would be exerted by 0.023 grams of oxygen
if it occupies 31.6 mL at
.
.50 M KCl because 5% is the same as .05, which makes the .50M more concentrated.
Answer: 83.11 torr
Explanation:
According to Dalton's Law of partial pressure, the total pressure of a mixture of gases is the sum of the pressure of each individual gas.
i.e Ptotal = P1 + P2 + P3 + .......
In this case,
Ptotal = 384 torr
P1 = 289 torr
P2 = 11.89 torr
P3 = ? (let the partial pressure of the remaining gas be Z)
Ptotal = P1 + P2 + Z
384 torr = 289 torr + 11.89 torr + Z
384 torr = 300.89 torr + Z
Z = 384 torr - 300.89 torr
Z = 83.11 torr
Thus, the partial pressure of the remaining gas is 83.11 torr.
Answer:
The answer is supposed to be "Electron cloud" or "Electon".