Answer:
hope it's help you ok have a good day
Answer:
9.03 x 10²³atoms
Explanation:
Given parameters:
Number of moles of CO₂ = 1.5mol
Unknown:
Number of atoms = ?
Solution:
In a mole of a substance, we have the Avogadro's number of particles which is 6.02 x 10²³atoms.
Using this number, we can determine the amount of atoms in any substance.
If;
1 mole of CO₂ contains 6.02 x 10²³ atoms;
1.5mole of CO₂ will contain 1.5 x 6.02 x 10²³ atoms
= 9.03 x 10²³atoms
100000N/m²
Explanation:
Given parameters:
Weight of the box = 120N
Area of the box = 12cm²
Unknown:
Pressure of the box on the floor = ?
Solution:
Pressure is the force exerted by a body per unit area:
Pressure = 
We need to convert the area into m² from cm²
10000cm² = 1m²
12cm² = 
= 0.0012m²
Pressure = 
= 100000N/m²
Learn more:
Pressure brainly.com/question/4868239
#learnwithBrainly
Answer:
d = 0.793 g/L
Explanation:
Given data:
Density of fluorine gas = ?
Pressure of gas = 0.554 atm
Temperature of gas = 50 °C (50+273.15K = 323.15 K)
Solution:
Formula:
PM = dRT
M = molar mass of gas
P = pressure
R = general gas constant
T = temperature
d = PM/RT
d = 0.554 atm × 37.99 g/mol / 0.0821 atm.L /mol.K × 323.15 K
d = 21.05 atm.g/mol/26.53 atm.L /mol
d = 0.793 g/L
The answer is 1. Radiation
