Answer:
Al(NO₃)₃ + (NH₄)₃PO₄ —> AlPO₄ + 3NH₄NO₃
The coefficients are: 1, 1, 1, 3
Explanation:
__Al(NO₃)₃ + __(NH₄)₃PO₄ —> __AlPO₄ + __NH₄NO₃
The above equation can be balance as illustrated below:
Al(NO₃)₃ + (NH₄)₃PO₄ —> AlPO₄ + NH₄NO₃
There are 12 atoms of H on the left side and 4 atoms on the right side. It can be balance by writing 3 before NH₄NO₃ as shown below:
Al(NO₃)₃ + (NH₄)₃PO₄ —> AlPO₄ + 3NH₄NO₃
Now the equation is balanced.
The coefficients are: 1, 1, 1, 3
Answer:
A. NaOH.
Explanation:
The pH of the solution = 6.8.
- The pH of the solution increases as the basicity of the solution increases.
- The basicity of the solution will increase by adding bases that have the ability to produce OH⁻.
So, NaOH and NH₃ "bases" will increase the pH of the solution.
while, HCl and HNO₃ "acids" will increase the acidity of the solution, thus pH will decrease.
But, NaOH will increase the pH of the solution the most because it is dissociates completely to OH⁻ , while NH₃ is weakly ionized "does not dissociate completely".
<em>So, NaOH will increase the pH the most when added to the solution.</em>
Answer:
0.635 cm³
Explanation:
You divide the mass by the density of iron (7.87 g/cm³)
<em>D = m</em>/<em>V</em> Multiply both sides by V.
<em>DV = m</em> Divide both sides by D.
<em>V</em> = <em>m</em>/<em>D</em> Insert the values.
<em>V </em>= 5.00/7.87 Do the division.
<em>V</em> = 0.635 cm³
The volume of the Ti unit cell can be calculated using Equation :
For HCP, n tthat is number of atoms/unit cell = 6 atoms/unit cell,
atomic weight for Ti, ATi = 47.9 g/mol.
Thus, 
= 1.058 × 10−22 cm³/unit cell
= 1.058 × 10−28 m³/unit cell
