Hello there.
<span>A 250.0 ml buffer solution is 0.250 M in acetic acid and. 250M in sodium acetate. what is the ph after addition of. 0050 mol of HCL? what is the ph after the addition of. 0050 mol of NaOH?
Part 2 answer: </span><span>pH = 4.67 </span>
Answer:
Chromium
Explanation:
Cr has 24 atomic number and mass number 52
The electron domain geometry of all of the above except XeF4 (answer E) is a tetrahedral.
Explanation
Tetrahedral is a molecular shape that result when they are four bonds and no lone pair around the central atom in the molecule.
The bond bonded to the central atom lie at the corner of tetrahedron with 109.5 degrees between them.
CBr4,PH3 , CCl2Br2 has a tetrahedral geometry while XeF4 has a square planar.
The liquid that is use to dissolve solute
The balanced equation for the above neutralisation reaction is as follows;
2KOH + H₂SO₄ --> K₂SO₄ + 2H₂O
stoichiometry of KOH to H₂SO₄ is 2:1
neutralisation is the reaction between H⁺ ions and OH⁻ ions to form water which is neutral
number of KOH moles - 1.56 mol
2 mol of KOH require 1 mol of H₂SO₄ for neutralisation
therefore 1.56 mol of KOH require - 1/2 x 1.56 mol = 0.78 mol
0.78 mol of H₂SO₄ are required for neutralisation