What is the pH number of sodium hydroxide?

Around 13 at ambient temperature.

1 molar NaOH is pH 14

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1 molar NaOH is pH 14 - at about 3.5 % pHs of just under 14 may be seen

Since NaOH is a strong base, shouldn't it be pOH=[NaOH]? Then pH=14-pOH?

No, sodium hydroxide is a strong base so its pH must be higher than 7.

If very dilute solutions are included, the pH value can be anything above 7.0 up to at least 14 and possibly higher.

It is pH 14

It's below 7. All non-metal oxides and hydroxides are acidic.

The pH will depend on the concentration and solubility (temperature). It will be >7

13

Actually massnumbers are only given to (isotopes) of elements. If you want to know the molecular mass, molar mass one should add up all atomic masses (not the same as 'mass numbers') of that molecule: Na=22.98977, O=16.00, H=1.008, so the molar mass of NaOH is 39.998 = 40.00 g/mol. (Note that atomic masses are not exact, but rounded numbers, while mass numbers are exact quantities (whole numbers): Na=23, O=16, 17, 18 and H=1)

Sodium hydroxide itself does not go on the pH scale, although any aqueous solution of it will have a number on the scale.

The pH becomes lower, appoaching a level of 7 if the solution is diluted sufficiently to become almost neutral.

Im pretty sure that because sodium hydroxide is a compound, it doesnt have an atomic number, as it is more than one atom.. maybe you should rephrase your question?

Use the working definition of pH used in General Chemistry classes:pH = -log([H+])and the equilibrium constant for ionization of water:[H+][OH-]=10-14(Here [] denotes concentration in Molarity)For moderate concentrations of NaOH (like 10-4-ish M and up, we can neglect the [OH-] from the actual ionization of water (since 10-7 is the maximum this concentration could be, when the NaOH concentration is 0, and even this is much less than the concentration of NaOH). Then we can say:10-14=[H+][OH-]=[H+][NaOH]… Read More

Both are strong bases and a solution of either will have a high pH.

Molarity = moles of solute/liters of solution M = 10 mol NaOH/1 liter = 10 M -log(10 M) = -1 14 - (-1) = 15 pH sodium hydroxide

The CAS registry number is: 1310-73-2

under 7 Hydrochloric acid has a pH under 7 as it is an acid. Sodium hydroxide is an alkali and will therefore have a pH above 7.

It depends on the concentrations of these substances. However, sodium hydroxide is a very strong base and therefore is capable of producing solutions with high pH values. On the other hand, sodium hydrogen carbonate is weakly acidic, and is therefore capable of producing solutions that are somewhat less than neutral. (Carbonic acid is itself a weak acid.)

its kind of orange and i think the ph of NaOH is 8-10................... double check though coz i tested this with red cabbage juice so i am not sure.................. \\\

over 15

This number is 1.

If you mean greater than the pH of vinegar, then the answer is sodium hydroxide is a base, which means it will have a pH greater than 7, and vinegar is an acid, which means it will have a pH less than 7.

sodium hydroxide = NaOH By Atom to Atom Ratio: Na = sodium = 33.333% O = oxygen = 33.333% H = hydrogen = 33.333% but if you mean mass ratio, then Na =23g O = 16g H = 1g 23g+16g+1g=40g therfore 23g/40g x 100 sodium (Na) percentage, by mass, is 57.5% (exact) in the total mass of sodium hydroxide NaOH

Sodium hydroxide is NaOH. Aluminum hydroxide is Al(OH)3. Sodium hydroxide is soluble in water and is a strong base while aluminum hydroxide is insoluble in water and is a weak base.

Although no particular pH value can be assigned to a substance the answer would be yes in this case. Since sodium hydroxide is a base it will produce a pH greater than 7 while vinegar, which contains an acid, has a pH less than 7.

Sodium hydroxide is a base, so it has a higher pH than hydrochloric acid. Acids are below 7 on the pH scale and bases are above 7 on the pH scale.

Acid

Sodium does not react with concentrated sodium hydroxyde. It reacts with the water molecules (in diluted NaOH) to form sodium hydroxyde and hydrogen gas.

NH4OH pH = 11.63

It depends upon the concentration.

There will not be any reaction .Both will remain togather in mixed form i.e.Na+ OH- and HSO3 ions in aquaeous solution Dr. Pradhan As a matter of fact there will be a reaction. Sodium Bisulfite (Sodium Hydrogen Sulfite) is a weak acid and Sodium Hydroxide is a Strong Base. Sodium Hydroxide will convert the Sodium Bisulfite to Sodium Sulfite (Na2SO3). You can actually see the reaction take place as Bisulfite generally has a yellow tinge… Read More

No reaction occurs.

They are both strong alkalis, and corrosive. Sodium and potassium hydroxide are also commonly known as lye, and are nearly chemically similar to each other.

NaOH

Sodium hydroxide is use to absorb carbon dioxide.

The formula is NaOH

Caustic soda or sodium hydroxide is considered to not be a fire hazard and therefore does not have a flashpoint

Sodium hydroxide is an extreme alkaline. It is used in many household items such as drain cleaner. It is also used to purify paper pulp. Hope this is what you needed. See http://en.wikipedia.org/wiki/Sodium_hydroxide for more information.

15,7

Uraine

The bonding between sodium cations and hydroxide anions in sodium hydroxide is ionic, but the bonding between oxygen and hydrogen atoms within the hydroxide anion is polar covalent,

Na2+H1+O2Na2HO3

Sodium Hydroxide (NaOH) The manufacture, characteristics, symptoms and effect of sodium hydroxide.Ads by GoogleCalciumCarbide in Purity Caustic Soda Pearls 99% from China Nice Price Payment T/T L/C accepted www.elegantcn.netCaustic Soda Solid Supplied By BeiJing Chemical Co Ltd Manufacturer in China,High Quality! www.myxdbj.comSelection Technologies Production systems for on-site, on- demand sodium methylate. www.select-ion.comSodium hydroxide is also called as sodium hydrate, caustic soda or lye. This is a white solid. It is available in flakes, pellets, granules… Read More

First things first: anything that is pH 2.0 is not water, it's a moderately powerful acid. Lemon juice, for instance, is pH 2.0. Orange juice is pH 3. Next, we don't know how much of this acid you need to make less acidic. Certainly a glass of lemon juice is going to require less NaOH to bring its pH up than will a barrel of it.

sodium,hydrogen and oxygen

1: Ammonium hydroxide is a nonmetallic weak base while sodium hydroxide is a strong base. 2: the 1st exists only in water while later also exist in solid state. 3: on heating 1st evolves ammonia gas while latter is highly stable towards heat. 4: the 1st do not reacts with semi metals as zinc, tin and aluminum while latter dissolves these metals.

Yes. NaOh is a strong base so it would have a pH greater than 7 (likely up around 13-14).