Answer:
5.64x10⁻³ g of S₈S₈
Explanation:
We consider mm as milimolal
Milimolal = molal . 1000
Molal are the moles of solute contained in 1kg of solvent.
Solute → Sulfur (S₈S₈)
Solvent → naphthalene
0.11 mm / 1000 = 1.1x10⁻⁴ molal
moles of solute / kg of solvent = 1.1x10⁻⁴ molal
moles of solute / 0.1 kg of solvent = 1.1x10⁻⁴ molal
moles of solute = 1.1x10⁻⁴ m/kg . 0.1kg → 1.1ₓ10⁻⁵ moles
Molar mass S₈S₈ = 512.96 g/m
1.1ₓ10⁻⁵ mol . 512.96 g/m = 5.64x10⁻³ g
<em>Mass = Moles x GFM</em>
<em>
mass = 30g so;
</em><em>30 = mol x GFM
</em>
To calculate the GFM, you require a data booklet or similar.
Mine tells me that the GFMs are:
H: 1 H₃ so 3 x 1 = 3
P: 31 P so 1 x 31= 31
O:16 O₄ so 4 x 16 = 64
GFM = 64 + 31 + 3 = 98
30 = 98 x <em>mol
</em><em>
</em><em>mol = </em>30 / 98
<em>mol = </em><u>0.31 mol</u>
1. it’s use for our food in like microwaves and ovens
2. airplanes are guided by radar waves,
3.the tv is used by electromagnetic waves
4. they are used in heaters,
5.infrared cameras which detect people in the dark
6.Allows airport security to observe the internal contents of objects and luggage using airport scanners
7.doctors use electromagnetic waves in x-rays
Answer:
Download Ptable, it will show all of the elements, and you can click on them, and it will show all the information you need about them!
Explanation:
I hope this helps!!!!!
A homogeneous mixture has the same uniform appearance and composition throughout. A heterogeneous mixture consists of visibly different substances or phases. Homogeneous mixtures
So the answer is heterogeneous.
