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3 years ago

Denumiți ionul produs în soluție atunci când de adaugă acizi în apa

Chemistry

1 answer:

svet-max [94.6K]3 years ago

3 0

Answer:

Ionul de hidroniu este un factor important atunci când avem de-a face cu reacții chimice care apar în soluții apoase. Concentrația sa în raport cu hidroxidul este o măsură directă a pH-ului unei soluții. Se poate forma atunci când un acid este prezent în apă sau pur și simplu în apă pură. Formula chimică este H3O +

Explanation:

The hydronium ion is an important factor when dealing with chemical reactions that occur in aqueous solutions. Its concentration relative to hydroxide is a direct measure of the pH of a solution. It can be formed when an acid is present in water or simply in pure water. It's chemical formula is H3O+

marke me as brainliest please

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PlEASE HELP! 40!

podryga [215]

Answer:

moles Na = 0.1114 g / 22.9898 g/mol=0.004846

moles Tc = 0.4562g /98.9063 g/mol=0.004612

mass O = 0.8961 - ( 0.1114 + 0.4562)=03285 g

moles O = 0.3285 g/ 15.999 g/mol=0.02053

divide by the smallest

0.02053/ 0.004612 =4.45 => O

0.004846/ 0.004612 = 1.0 => Tc

to get whole numbers multiply by 2

Na2Tc2O 9

Explanation:

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5 0

3 years ago

What is the chemical formula for nickel (III) oxide?

HACTEHA [7]

I think it is Ni2O3

4 0

4 years ago

A 1.2 L weather balloon on the

makkiz [27]

Answer:

330.95K

Explanation:

V₁ = 1.2L

T₁ = 25°C = (25 + 273.15)K = 298.15K

P₁ = 1.0 atm

P₂ = 0.74 atm

V₂ = 1.8L

T₂ =?

From combined gas equation,

(P₁ * V₁) / T₁ = (P₂ * V₂) / T₂

Solve for T₂

T₂ = (P₂ * V₂ * T₁) / (P₁ * V₁)

T₂ = (0.74 * 1.8 * 298.15) / (1.0 * 1.2)

T₂ = 397.1358 / 1.2

T₂ = 330.9465K

T₂ = 330.95K or T₂ = (330.95 - 273.15)°C = 57.8°C

8 0

3 years ago

Define Titanium and what it is used for

Kaylis [27]

Chemical element of atomic number 22, a hard silver-gray metal of the transition series, used in strong, light, corrosion-resistant alloys.These alloys are mainly used in aircraft, spacecraft and missiles because of their low density and ability to withstand extremes of temperature.

8 0

3 years ago

Determine if each of the following will form a neutral, acidic, or basic solution and explain why. Show your work.

vodomira [7]

Answer:

For a: The given salt is acidic in nature.

For b: The given salt is neutral in nature.

For c: The given salt is neutral in nature.

Explanation:

Salts are formed by the combination of an acid and a base. There are 3 types of salt:

Acidic salt: It is formed by the combination of strong acid and weak base.
Basic salt: It is formed by the combination of a strong base and weak acid.
Neutral salt: It is formed by the combination of strong acid and strong base or weak acid and weak base.

For the given options:

(a): $NaHSO_4$

This salt is formed by the combination of sodium hydroxide (strong base) and the partial dissociation of sulfuric acid (strong acid). It also has a replaceable hydrogen ion which can be produced when dissolved in water. Thus, the given salt is acidic in nature.

(b): $Na_2SO_4$

This salt is formed by the combination of sodium hydroxide (strong base) and sulfuric acid (strong acid).

Thus, the given salt is neutral in nature.

(c): $NH_4CN$

This salt is formed by the combination of ammonium hydroxide (weak base) and hydrocyanic acid (weak acid).

Thus, the given salt is neutral in nature.

7 0

3 years ago

Denumiți ionul produs în soluție atunci când de adaugă acizi în apa​

Denumiți ionul produs în soluție atunci când de adaugă acizi în apa