First of all energy is exchanged , then the charges get exchanged making the bond formed as neutral .
The kinetic theory states that potential energy in a gas is low but has high potential energy and they move around fast, Say in a solid it has more potential energy but less kinetic.
Answer:
e. 81.0%
Explanation:
Morphine has Molar mass = 285.34 g/mol
Also, number of males of Morphine = Number of moles of HCl
(At equivalence point )
Now, number of moles of HCl = Molarity × volume
=0.01 mol × 2.84×10^(-3) L
= 2.84×10^(-5) mol
therefore number of moles of morphine= 2.85×10^(-5)
Mass of Morphine= No. of moles × molar mass
= 2.84×10^(-5)×285.34 g/mol
= 0.0081 g
= 8.1 mg
therefore
percentage of morphine = mass of morphine/ mass of powder×100%
= 8.1/10×100% = 81.0%
hence option e is correct.
Answer: 1.0 x 10^-3M
Explanation:
The solution with pH 3 is said to be acidic because pH values less than 7 are regarded as acidic, and will produce hydrogen ions.
Mathematically, pH is expressed as
pH = -log(H+)
where H+ is the concentration of hydrogen ion
So, pH calculations are as follows
3 = -log(H+)
(H+) = Antilog (-3)
(H+) = 0.001M
Place (H+) in standard form
(H+) = 1.0 x 10^-3M
Thus, the value of hydrogen ion (H+) in the solution with pH 3 is 1.0 x 10^-3M
Answer:
2.1 x 10⁻².
Explanation:
- Generally, the equilibrium constant (Keq) is the product of the concentration of the reaction products divided by the product of the concentration of the reaction reactants, each term is raised to a power equal to its coefficient in the balanced chemical reaction.
- For the given reaction: 2HF → H₂ + F₂,
Keq = [H₂][F₂] / [HF]²,
Keq = [H₂][F₂] / [HF]² = [8.4 x 10⁻³][8.4 x 10⁻³] / [5.82 x 10⁻²]² = 2.1 x 10⁻².