<span>The equation that describes the problem is Fe(NO3)3(aq) + 3NaOH(aq) ---> Fe(OH)3(s) + 3 NaNO3(aq)
The Net ionic equation is written as follows:
Fe^3(aq) + 3NO3-(aq) + 3Na+(aq) + 3OH-(aq) ---> Fe(OH)3(s) + 3Na+(aq) + 3NO^3-(aq)</span>
Answer:
D
Explanation:
Diffusion is directly propotional to temperature i.e. if the temperature is hight diffusion is more and vice versa
Moreover, diffusion is inversely propotional to size i.e. if molecules are large , diffusion is less and vice versa
Answer:
Given equation of parabola is
and
2
=64x ......(i)
The point at which the tangent to the curve is parallel to the line is the nearest point on the curve.
On differentiating both sides of equation (i), we get
2 y
dx
d y
=64
⇒
dx
d y
=
and
32
Also, slope of the given line is −
3
4
∴−
3
4
=
and
32
⇒and=−24
From equation (i), (−24)
2
=64x⇒x=9
∴ the required point is (9,−24)
Explanation:
This is the correct answer you want
please follow the
Answer:
45.165× 10²³ NH₄⁺ ions
Explanation:
Given data:
Number of NH₄⁺ ions present = ?
Moles of (NH₄)₃PO₄ = 2.5 mol
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
1 mole of (NH₄)₃PO₄ = 3 mole NH₄⁺
In 2.5 moles of (NH₄)₃PO₄ = 2.5× 3 = 7.5 moles of NH₄⁺
Number of ions of NH₄⁺ in 2.5 moles of (NH₄)₃PO₄:
7.5 mole of NH₄⁺ × 6.022 × 10²³ NH₄⁺ ions / 1 mol
45.165× 10²³ NH₄⁺ ions