All categories

4 years ago

"an acid is a substance that forms hydrogen ions when dissolved in water." this is an example of —

Chemistry

1 answer:

LenaWriter [7]4 years ago

5 0

Answer is: this is an example of an Arrhenius acid.

An Arrhenius acid is a substance that dissociates in water to form hydrogen ions or protons (H⁺).

For example hydrochloric acid: HCl(aq) → H⁺(aq) + Cl⁻(aq).

An Arrhenius base is a substance that dissociates in water to form hydroxide ions (OH⁻).
In this example lithium hydroxide is an Arrhenius base:

LiOH(aq) → Li⁺(aq) + OH⁻(aq).

You might be interested in

How do two elements change properties when they form a compound

S_A_V [24]

In most cases, when two elements form a compound, the new compound has a set of chemical properties that are entirely different from its reactants. However, in the case of diatomic compounds, such as O2, then yes, the compound retains the properties of its elemental parts.

5 0

3 years ago

Calculate the freezing point of a solution of 300. 0 g of ethylene glycol (c 2h 6o 2) dissolved in 300. 0 g of water. K f = 1. 8

Tju [1.3M]

Jesus loves you repent today !!! Believe that christ Is the Lord

7 0

3 years ago

Of the bonds listed below the weakest bond is _______ and the strongest is ________. A strong bond is a (stable / unstable) bond

ra1l [238]

Based on the data given of the bonds listed below, the weakest bond is C-H and the strongest bond is C ≡ C.

A strong bond is a stable bond.

<h3>Which of the bonds listed is the weakest and which is the strongest?</h3>

The strength of a bond is proportional to the amount of energy required to break or form the bond.

A weak bond will require less energy to form than a strong bond.

A weak bond is unstable while a strong bond is stable.

Data provided:

839 kJ/mol C ≡ C

495 kJ/mo O = O

413 kJ/mo C—H

From the data given of the bonds listed below, the weakest bond is C-H and the strongest bond is C ≡ C.

A strong bond is a stable bond.

Learn more about energy of bonds at: brainly.com/question/25086481

7 0

3 years ago

What is the Law of the Conservation of Mass

Fantom [35]

Answer: law of conservation of matter states that mass in an isolated system can neither be created nor destroyed by chemical reactions or physical transformation.

thus, the mass of the reactants in a reaction must be equal to the mass of the products

6 0

3 years ago

In Haber’s process, 30 moles of hydrogen and 30 moles of nitrogen react to make ammonia. If the yield of the product is 50%, wha

devlian [24]

Answer:

Therewill be produced 170.6 grams NH3, there will remain 25 moles of N2, this is 700 grams

Explanation:

Step 1: Data given

Number of moles hydrogen = 30 moles

Number of moles nitrogen = 30 moles

Yield = 50 %

Molar mass of N2 = 28 g/mol

Molar mass of H2 = 2.02 g/mol

Molar mass of NH3 = 17.03 g/mol

Step 2: The balanced equation

N2 + 3H2 → 2NH3

Step 3: Calculate limiting reactant

For 1 mol of N2, we need 3 moles of H2 to produce 2 moles of NH3

Hydrogen is the limiting reactant.

The 30 moles will be completely be consumed.

N2 is in excess. There will react 30/3 =10 moles

There will remain 30 -10 = 20 moles (this in the case of a 100% yield)

In a 50 % yield, there will remain 20 + 0,5*10 = 25 moles. there will react 5 moles.

Step 4: Calculate moles of NH3

There will be produced, 30/ (3/2) = 20 moles of NH3 (In case of 100% yield)

For a 50% yield there will be produced, 10 moles of NH3

Step 5: Calculate the mass of NH3

Mass of NH3 = mol NH3 * Molar mass NH3

Mass of NH3 = 20 moles * 17.03

Mass of NH3 = 340.6 grams = theoretical yield ( 100% yield)

Step 6: Calculate actual mass

50% yield = actual mass / theoretical mass

actual mass = 0.5 * 340.6

actual mass = 170.3 grams

Step 7: The mass of nitrogen remaining

There remain 20 moles of nitrogen + 50% of 10 moles = 25 moles remain

Mass of nitrogen = 25 moles * 28 g/mol

Mass of nitrogen = 700 grams

6 0

4 years ago

Read 2 more answers