Explanation:
5N right because -15N for left plus +20N for right = +5N
If you have 3.0 moles of argon gas at STP u would take up 2.5 volume
The answer is 300
3 * 100
3 * 10 * 10
30 * 10
300
Hope this helps. If it did, consider making it Brainliest!
<u>Answer:</u> The density of phosphorus is 
<u>Explanation:</u>
To calculate the density of phosphorus, we use the equation:

where,
= density
Z = number of atom in unit cell = 1 (CCP)
M = atomic mass of phosphorus = 31 g/mol
= Avogadro's number = 
a = edge length of unit cell =
(Conversion factor:
)
Putting values in above equation, we get:

Hence, the density of phosphorus is 
The number of moles of oxygen in the gas is 1.5 L.
The correct option is (A).
<h3>What are moles? </h3>
The mole is the International System of Units' foundation unit of material quantity.
Given,
The volume of gas is 33.6 L
Pressure is 1 atm.
Temperature is 0°C
Molar gas volume is 22.4 L
There is no temperature and pressure is 1 atm.
By formula of moles, volume is divided by molar mass

Thus, option A is correct. 1.5 L.
Learn more about gas, here:
brainly.com/question/13123721