Identify the change of state occurring in each situation. your friend's perfume producing an aroma that fills the room making ic
1 answer:
Answer:
The solution to this question can be defined as follows:
Explanation:
Naphthalene falls off from candle something, strong fumes-sublimation produces.
- On a rainy day in winter, the breath fogging up on your cor's windshield.
- Brost formation on an overnight deposition on a frozen windshield.
- Making milk ice cream freezing the perfuming scent that fills the creation of the room.
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Answer:
Explanation:
1. Calculate the volume of the unit cell
V = l³ = (2.866 × 10⁻⁸ cm)³ = 2.354 × 10⁻²³ cm³
2. Calculate the mass of a unit cell
3. Calculate the mass of one atom
A body-centred unit cell contains two atoms.
Answer:- 0.800 moles of the gas were collected.
Solution:- Volume, temperature and pressure is given for the gas and asks to calculate the moles of the gas.
It is an ideal gas law based problem. Ideal gas law equation is used to solve this. The equation is:
PV=nRT
Since it asks to calculate the moles that is n, so let's rearrange this for n:
V = 19.4 L
T = 17 + 273 = 290 K
P = 746 mmHg
we need to convert the pressure from mmHg to atm and for this we divide by 760 since, 1 atm = 760 mmHg
P = 0.982 atm
R =
Let's plug in the values in the equation to get the moles.
n = 0.800 moles
So, 0.800 moles of the gas were collected.