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Ratling [72]
4 years ago
14

Is h2c2o4 an Arrhenius base or arrhenius acid

Chemistry
1 answer:
maksim [4K]4 years ago
6 0
Answer:
            Oxalic Acid is and Arrhenius Acid.

Explanation:
                   According to Arrhenius Theory of acid and base, "Acid is any substance which when dissolved in water produces H⁺ Ions".

Therefore, Oxalic Acid is a diprotic substance, which is capable of donating protons in water. This acidity of oxalic acid can be dedicated to the stability of conjugate base, this stability comes from resonance of the negative charges on Oxalate ion. Below reaction shows the dissociation of Oxalic Acid into Protons and Oxalate Ion.

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What are the hypotheses on which Dalton's atomic theory is based?
worty [1.4K]

Answer:

 Dalton's theory are based on the two laws  that are: Law of conservation of mass and law of constant composition. This theory basically described their properties of atoms.

This theory state that all the atoms are made up of matter which are invisible and in the elements all the atoms are identical in mass and properties.

3 0
3 years ago
An air sample consists of oxygen and nitrogen gas as major components. It also contains carbon dioxide and traces of some rare g
jekas [21]

Explanation:

A mixture is defined as the substance that contains two or more different number of substances that are physically mixed together.

For example, a mixture of air which contains oxygen, nitrogen and other gases.

A mixture in which solute particles are unevenly distributed into the solvent then it is known as a heterogeneous mixture.

For example, sand in water is a heterogeneous mixture.

A homogeneous mixture is defined as the mixture in which solute particles are evenly distributed in a solvent.

A homogeneous mixture is a clear solution.

For example, salt dissolved in water is a homogeneous mixture.

A solution is defined as the substance in which two or more substances are mixed together.

A compound is defined as the substance that contains two or more different elements that chemically combined together in a fixed ratio by mass.

A element is defined as the substance that contains only one type of atoms.

For example, a piece of sodium element will contain only atoms of sodium.

Whereas a pure substance is defined as the substance which contains only one type of molecule or one type of atom.

For example, O_{2}, N_{2} etc are pure substances.

Thus, we can conclude that the terms which could be used to describe the given sample of air is as follows.

  • pure chemical substance.
  • heterogenous mixture.
  • mixture.
4 0
3 years ago
True or false?<br><br> In order for an ionic bond to form, there needs to be a cation and an anion.
olya-2409 [2.1K]

Answer:

True  

Step-by-step explanation:

An ionic bond is the attraction between a cation and an anion.

If there is no cation or anion, there is no ionic bond.


6 0
4 years ago
In two or more complete sentences describe how atomic radius changes as you move down a group in the periodic table and why.
FrozenT [24]

in two of they got harder

8 0
3 years ago
3.0 kg of nitrogen gas in a piston cylinder device initially at a temperature of 300 K and a pressure of 100 kPa is compressed t
lutik1710 [3]

Answer:

ΔU = 103.54 KJ

Explanation:

∴ ΔU = Q + W

ideal gas:

∴ PV = nRT

∴ R = 8.314 L.KPa/K.mol

∴ n = 3000 g N2 * ( mol/28.0134g N2) = 107.143 mol N2

∴ m N2 = 3.0 Kg

∴ T1 = 300 K

∴ P1 = 100 KPa

∴ V1 = nRT1/P1 = 2672.36 L = 2.67 m³

⇒ V2 = 0.9*V1 = 2405.12 L = 2.41 m³

∴ P2 = 140 KPa

⇒ T2 = P2.V2/n.R = 377.99 ≅ 378 K

⇒ W = P1V1 - P2V2

⇒ W = ((100KPa)*(2.67m³)) - ((140KPa)*(2.41m³))

⇒ W = - 70.164 KJ

∴ Q = nCpΔT

∴ Cp = (5/2)*R = 20.785 J/mol.K ....ideal gas

⇒ Q = (107.143mol)*(20.785 J/mol.K)*(378 - 300)

⇒ Q = 173703.446 J = 173.703 KJ

⇒ ΔU = 173.703 KJ - 70.164 KJ

⇒ ΔU = 103.54 KJ

3 0
3 years ago
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