It means 3p (p being your variable) to the third power, or cubed
Answer:
The vessel has 0.0913 moles of O₂. Therefore it has 5.49ₓ10²² molecules of O₂
Explanation:
Let's apply the Ideal Gases Law to solve this.
First of all, we convert the pressure from mmHg to atm
782 mmHg . 1 atm / 760 mmHg = 1.03 stm
We convert the volume from mL to L
2239 mL . 1L / 1000mL = 2.239L
and finally we convert T° C to K → 35°C + 273 = 308K
Formula is: P . V = n . R . T
1.03 atm . 2.239L = n . 0.082 L.atm/mol.K . 308K
n = 1.03 atm . 2.239L / 0.082 L.atm/mol.K . 308K → 0.0913 moles
Let's count the molecules → 0.0913 mol . 6.02ₓ10²³ molecules / 1 mol =
5.49ₓ10²² molecules
Answer:
The three main subatomic particles that form an atom are protons, neutrons, and electrons.
Explanation:
Chemical changes: A substance is chemically changed due to a chemical reaction, and forms a new substance and energy that is given off or absorbed.
Examples:
Paper burned
Souring milk
Baking a cake
Rusted iron
Physical change: Substance that doesn't change what the substance is.
Examples:
Paper cut in half
Water boiled
Molded bread
Ice melted into a liquid
HOPE THIS HELPS YOU! ^_^