Answer:
0.036 moles of gas are contained in 890.0 mL at 21.0 C and 0.987 atm
Explanation:
Ideal gases are those gases whose molecules do not interact with each other and move randomly.
An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:
P * V = n * R * T
where P represents the pressure of the gas, V its volume, n the number of moles of gas (which must remain constant), R the constant of the gases and T the temperature of the gas.
In this case:
- P= 0.987 atm
- V= 890 mL= 0.890 L (being 1 L= 1,000 mL)
- n= ?
- R= 0.082
- T= 21 °C= 294 °K
Replacing:
0.987 atm* 0.890 L= n* 0.082 * 294 K
Solving:
n= 0.036 moles
<u><em>0.036 moles of gas are contained in 890.0 mL at 21.0 C and 0.987 atm</em></u>
Answer:
606.09K
Explanation:
Using the combined gas law equation;
P1V1/T1 = P2V2/T2
Where;
P1 = initial pressure (atm)
P2 = final pressure (atm)
V1 = initial volume (L)
V2 = final volume (L)
T1 = initial temperature (K)
T2 = final temperature (K)
According to the provided information in the question;
P1 = 0.922atm
P2 = 1030torr = 1.355atm
V1 = 4.64L
V2 = 4.36L
T1 = ?
T2 = 837K
Using P1V1/T1 = P2V2/T2
0.922 × 4.64/T1 = 1.355 × 4.36/837
4.278/T1 = 5.9078/837
Cross multiply
5.9078T1 = 837 × 4.278
5.9078T1 = 3580.69
T1 = 3580.69/5.9078
T1 = 606.09K
Answer:
6
Explanation:
You will see H6 and the H stands for helium and the 6 is how many of that atom is there
Answer:
human impact, hurricanes, and sinkholes
Explanation:
Reason1: electrons on farther layers become free easyer
2nd reason: volume of atoms grows (from Helium to Xeon) so instead of boyle-mariot law equation (PV=vRT) is more accurate to use van der walls equations that adds to the boyle-mariot equation the volume occupied by the atoms of the gas to the volume of the space between the atoms P(Vm-b)=vRT
