No it is not. the balanced equation is 2NH3 = N2 + 3H2
Answer:
a. the pH is only determined by the concentration of B and no titrant is added to the solution yet
b. when acid is added to the weak base B it is converted to conjugal acid BH+
Explanation:
a. point labelled A is the starting point
b. point B is the equivalent point
When the phosphate groups of the single nucleotides combine to form the backbone of the nucleic acid, energy is released. This energy is used for polymerization.
The balanced equation for the reaction between NaOH and HCl is
NaOH + HCl ---> NaCl + H₂O
stoichiometry of NaOH to HCl is 1:1
during neutralisation, number of H⁺ ions = OH⁻ ions. Together they form water molecules and neutralise the solution as water is neutral.
Number of NaOH moles in 1000 ml - 0.2 mol
therefore in 12.5 ml -0.2/1000 x 12.5
= 0.0025 mol
at neutralisation point , number of OH⁻ mol = number of H⁺ ions
since stoichiometry of base to acid is 1:1
number of HCl moles reacted = 0.0025 mol
concentration is the number of moles in 1000 ml
in 25 ml number of HCl moles - 0.0025 mol
Therefore in 1000 ml - 0.0025 mol /25 x 1000
concentration of HCl - 0.1 M
The answer is B2. The configuration has six electrons. B2 is
the only answer choice that has six valence electrons. Boron is a chemical
element with symbol B and atomic number 5. Shaped completely
by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it
is a low-abundance element.