a. stereospecific: 100% inversion of configuration at the reaction site
Molar mass NaCl = 58.44 g/mol
number of moles:
mass NaCl / molar mass
145 / 58.44 => 2.4811 moles of NaCl
Volume = 3.45 L
Therefore :
M = moles / volume in liters:
M = 2.4811 / 3.45
M = 0.719 mol/L⁻¹
hope this helps!
The mass percent of potassium chloride is 1.386%
<u><em>calculation</em></u>
mass percent = actual mass/ Theoretical mass x 100
Actual mass = 9.35 g
Theoretical mass is calculated as below
Step 1 : write the equation for reaction
KCl + H₂O → KOH + HCl
Step 2: find the moles of H₂O
moles = mass÷ molar mass
The molar mass of H₂O = (2 x1 ) +(16) = 18 g/mol
moles is therefore = 162.98 g÷ 18 g/mol =9.054 moles
Step 3: use the mole ratio to determine the moles of KCl
KCl: H₂O is 1:1 therefore the moles of KCl is also = 9.054 moles
Step 4: find the theoretical mass of KCl
mass = moles x molar mass
from periodic table the molar mass of KCl = 39 +35.5 =74.5 g/mol
mass = 9.054 moles x 74.5 g/mol =674.5 g
Theoretical mass is therefore = 9.35 g/ 674.5 g x 100 = 1.386%
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<h3>
Answer:</h3>
Ionic compounds
<h3>
Explanation:</h3>
What are ionic compounds?
- Ionic compounds are compounds that are formed due to ionic bonds between atoms.
- Ionic bonds are formed between metallic atoms and non-metallic atoms.
What are examples of ionic compounds?
- Examples of ionic compounds include, KCl, NaBr, MgCl₂, etc
How do ionic compound ionize in water?
- Ionic compounds ionizes when dissolved in water to form mobile ions.
- When dissolved in water they may serve as electrolytes due to the presence of free ions which will be responsible for conduction of electricity.
- For example, NaCl ionizes to form Na⁺(aq) and Cl⁻(aq).
