Answer: 6.18 g/L
Explanation:
To calculate the density of gas, we use the equation given by ideal gas equation:
Number of moles (n) can be written as:
where, m = given mass
M = molar mass
where,
which is known as density of the gas
The relation becomes:
.....(1)
We are given:
M = molar mass of = 146.06 g/mol
R = Gas constant =
T = temperature of the gas =
P = pressure of the gas = 1 atm
Putting values in equation 1, we get:
Thus density of sulfur hexafluoride gas at exactly 15°C and exactly 1atm is 6.18g/L
Yes it is for example look at Iodine and Tellurium.
Hope this helps :).
Answer:
Light travels in a straight line until it strikes an object.
As white light passes through a prism , it bends and separates into different colors
Answer:
Explanation:
First, convert the grams to moles, then convert moles to atoms.
1. Grams to moles
To convert from grams to moles, we use the molar mass. Phosphorus's molar mass is given to use.
- Phosphorus (P)= 30.97 g/mol
We can use this number as a fraction.
Multiply by the given number of grams (1.01)
Flip the fraction so the grams of phosphorus cancel out.
2. Convert Moles to Atoms
To convert from moles to atoms, we use Avogadro's Number.
This tells us the number of particles in 1 mole. In this case, it is atoms of phosphorus in 1 mole of phosphorus. We can create a fraction.
Multiply by the number of moles we calculated.
The moles of phosporus will cancel.
This is closest to 1.97*10²² atoms, so choice B is correct.