<span>greater dispersion forces is in fact correct</span>
Answer:
[OH⁻] = 3.55×10⁻¹⁰M
Explanation:
Given data:
pOH of vinegar = 9.45
[OH] = ?
Solution:
Formula:
pOH = -log[OH⁻]
Now we will put the value of pOH.
9.45 = -log[OH⁻]
[OH⁻] = 10∧-pOH
[OH⁻] = 10⁻⁹°⁴⁵
[OH⁻] = 3.55×10⁻¹⁰M
Answer:
Neon
Explanation:
The most stable Atoms are from the elements on group 18 of the predictable.
<span>Magnesium is the central atom of chlorophyll molecule. Chlorophyll is essential in plants for the process of photosynthesis. Chlorophyll are pigments absorbing sunlight. It is made up of porphyrin ring. At the centre of this ring magnesium forms the basic part.</span>
Answer:
V = 513.36m/s
Explanation:
Temperature (T) = 25°C = (25 + 273.15) = 298.15K
Speed (V) = 1.92*10³m/s
According to kinetic theory of gases, the speed (v) of a molecule is
V= √(3RT / M)
V = speed or velocity
R = ideal gas constant = 0.082J/mol.K
T = temperature of the gas
M = molar mass
Molar mass of hydrogen molecule = 2.0g/mol
Molar mass of Nitrogen molecule = (2×14.0) = 28.0g/mol
Since they're in the same temperature
V1 / V2 = √(M2 / M1)
1.92×10³ / V2 = √(28 / 2)
1.92×10³ / V2 = √(14)
1.92*10³ / V2 = 3.74
1.92*10³ = 3.74V2
V2 = 1920 / 3.74
V2 = 513.36m/s
The velocity of Nitrogen molecule is 513.36m/s
