The amount of Calcium hydroxide : = 58.719 g
<h3>Further explanation</h3>
Given
100 g Nitric Acid-HNO₃
Required
The amount of Calcium hydroxide
Solution
Reaction(balanced) :
Ca(OH)₂ (s) + 2HNO₃ (aq) → Ca(NO₃)₂ (aq) + 2H₂O (l)
mol of Nitric acid (MW 63 g/mol) :
mol = mass : MW
mol = 100 : 63
mol = 1.587
From the equation, mol ratio of Ca(OH)₂ : HNO₃ = 1 : 2, so mol Ca(OH)₂ :
=1/2 x mol HNO₃
= 1/2 x 1.587
=0.7935
Mass of Ca(OH)₂ (MW=74 g/mol) :
= mol x MW
= 0.7935 x 74
= 58.719 g
The ionization energies (kJ/mol) of hydrogen, nitrogen, sodium, chlorine, and fluorine are 1,312, 1,402, 496, 1,256, and 1,681,
Norma-Jean [14]
Answer: Sodium will most likely to become a monoatomic ion with fluorine when these atoms interact.
Explanation:
Ionization energy is defined as the energy required to remove the most loosely bound electron from a neutral gaseous atom.
With increase in atomic size of the atom, there will be less force of attraction between the nucleus and the valence electrons of the atom. Hence, with lesser amount of energy the valence electrons can be removed.
More is the value of ionization energy more it is difficult to remove an electron. Therefore, lesser is the reactivity of element.
Hence, we can conclude that sodium will most likely to become a monoatomic ion with fluorine when these atoms interact.
The vise president of India is M. Venkaiah Naidu
Answer:
3. Granite and Gneiss.
Gneiss is a coarse to medium grained banded metamorphic rock formed from igneous or sedimentary rocks during regional metamorphism. Banded gneisses called migmatites are composed of alternating light colored layers of granite or quartz feldspar and dark layers rich in biotite.
Granite is a purely natural stone that comes directly from stone quarries and is then cut into thin slabs, polished, and fabricated into countertops. So-called quartz countertops are engineered stone products that may contain a large percentage of natural quartz but may also include other minerals.
Answer:
The density of liquid is 3 g/mL.
The mass of liquid is 60 g.
The volume of liquid is 10 mL.
Explanation:
Given data:
Density of liquid = ?
Mass of liquid = 30 g
Volume of liquid = 10 mL
Solution:
d = m/v
d = density
m = mass
v = volume
Now we will put the values in formula.
d = 30 g/ 10 mL
d = 3 g/mL
The density of liquid is 3 g/mL.
2nd:
Given data:
Density of liquid = 2 g/mL
Volume of liquid = 30 mL
Mass of liquid = ?
Solution:
d = m/v
2 g/mL = m/ 30 mL
m = 2 g/mL×30 mL
m = 60 g
The mass of liquid is 60 g.
3rd:
Given data:
Density of liquid = 5 g/mL
Mass of liquid = 50 g
Volume of liquid = ?
Solution:
d = m/v
5 g/mL = 50 g/ v
v = 50 g/5 g/mL
v = 10 mL
The volume of liquid is 10 mL.
