Answer: The total mass in grams of every atom that constitutes a mole of a given molecule is known as the molar mass. Generally expressed in grams per mole, the molar mass is a mass property of a substance rather than a molecular property.
Sodium Hydroxide is expressed as NaOH. This compound is composed of one atom each of sodium, oxygen, and hydrogen.
Here is a brief overview of sodium hydroxide, NaOH:
- NaOH is the molecular formula.
- The molecular weight of a substance is 39,997 g/mol.
- Three atoms total: Na, O, and H.
- 323°C is the melting point.
- 1403°C is the boiling point.
- 108,7g/100 ml of water solubility.
- 0,5 mg/m³ is the limit of concentration.
Sodium hydroxide is a crystalline substance that is colorless and caustic. Certain metals and biological compounds are susceptible to corrosion by the sodium hydroxide solution. An explosive gas called hydrogen is released when it comes into contact with zinc, lead, aluminum, tin, and their alloys. Furthermore, Acidic oxides and acids are neutralized with sodium hydroxide. It also acts as a catalyst in a number of other chemical processes. It is utilized in the production of pure metals, aluminum etching, and titration.
How Is NaOH Made?
Chemical and electrochemical processes are used in industry to manufacture sodium hydroxide. An aqueous solution of NaCl is electrolyzed to produce all sodium hydroxide used in industry. Additionally, gaseous hydrogen (a very strong base) and chlorine are produced by the process:
2NaCl + 2H2O → 2NaOH + Cl2 + H2
Both liquid and solid mercury cathode electrolysis are used in the electrochemical process. The mercury approach is technically much simpler to apply, but it has substantial negative effects on the environment. The most complicated and effective way to produce sodium hydroxide is through membrane technology. The purest form of sodium hydroxide is produced using membrane electrolysis.
Lime and ferritic are the most common chemical processes used to produce sodium hydroxide. The lime process involves combining slaked lime with a soda ash solution. Two materials are needed for the ferritic method: iron oxide and soda ash. There are two stages to the process. Sodium ferrite is produced by calcining a combination of soda and iron oxide. One stripped-off solution produces a dependable product once the resultant sodium hydroxide solution is evaporated. The cycle of production is restarted with iron oxide.
How To Find the Molar Mass of NaOH?
Here is how you can find the molar mass of NaOH:
- First, get the periodic table ready. The valence and atomic masses of chemical elements can necessitate its determination.
- Compute a formula correctly by applying your understanding of the fundamental groups of inorganic chemical substances and their characteristics. data from the periodic table as well. For example:
caustic soda – NaOH
potassium hydroxide – KOH
carbon dioxide – CO2
hydrochloric acid – HCl
sulfuric acid – H2SO4
calcium chloride – CaCL2
aluminum hydroxide – Al(OH)3
First and foremost, it’s important to keep in mind the valence of the constituent parts when creating compound formulations.
- Calculate NaOH’s molar mass and molecular weight. We use the mass of atoms in a chemical element’s cell from the periodic table once more:
Molecular mass = Mr [NaOH] = Ar [Na] + Ar [O] + Ar [H] = 22.98976928 + 15.9994 + 1.00794 = 39.99710928
Molar mass = Mr [NaOH]: 1000 = 39.99710928: 1000 = 0.04 kg/mol
As the example illustrates, all that is needed to complete the computations is to sum up the molar masses of the constituent elements—Na, O, and H.
- Now, using the Avogadro number, find the mass of a single molecule of each of these substances:
m(NaOH) = Mr(NaOH)/NA= 39/6,02*1023 = 6,4*1023 g
You can rapidly determine the mole count by using the algorithm.
Here Is an Example Showing the Calculation of Molar Mass of NaOH
Question: How many equivalents are there in 140 grams of potassium hydroxide (KOH) and how much sodium hydroxide (NaOH)?
Solution: Utilizing the following formula, get the molar mass of potassium hydroxide equivalent (KOH):
Meqv = M * feqv
Hence, we obtain: Meqv(KOH)=M(KOH)* feqv
Thus, 140 g of potassium hydroxide (KOH) has an equivalent content of 140/56 = 2.5.
Apply the following formula to determine the molar mass of the sodium hydroxide (NaOH) equivalent:
NaOH Meqv=NaOH * feqv
Thus, we get this: Meqv(NaOH)=40 * 1 = 40 (g/mol).
Thus, 40 g/mol * 2.5 mol = 100 (g) is the equivalent of 2.5.
There are 100 grams of NaOH.
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