All categories

3 years ago

All of the following can be used to define an acid except

Chemistry

1 answer:

Norma-Jean [14]3 years ago

8 0

Answer: a substance that increases the hydroxide ion concentration of a solution

Explanation: According to Arrhenius concept, an acid is a substance which donates hydronium ions $[H^+]$ ions when dissolved in water and base is a substance which donates hydroxide ions $[OH^-]$ ions in water.

According to the Bronsted Lowry conjugate acid-base pair, an acid is a substance that donates protons and a base is a substance that accepts protons.

According to Lewis concept, an acid is the substance which accepts electron pairs and abase is a substance which donates electron pairs.

Thus a substance that increases the hydroxide ion concentration of a solution is an Arrhenius base.

You might be interested in

HELPPPP PLEASEEE

Igoryamba

Atomic mass is the answer!!
Explanation: An elements atomic number won’t be able to change

6 0

3 years ago

How to solve 2 and 3

GarryVolchara [31]

Use the Heat formula for both problems.

q=m*c*∆t

Where
q= heat in Joules
m= mass in grams
c= specific heat which is a constant 4.18
∆t= change in temperature

3 0

3 years ago

What is the atomic number of an ion with 5 protons, 6 neutrons, and a charge of 3?

Vedmedyk [2.9K]

5 is the atomic number, 11 is the atomic mass and boron is the element

7 0

3 years ago

What is the molarity of a solution in which 58g of nacl are dissolved in 1.0l of solution?

Marat540 [252]

Molarity is moles of solute per liter of solvent, so convert 58 g NaCl to moles, then divide by 1 liter to get your answer

7 0

3 years ago

A mixture of three gases has a pressure at 298 K of 1380 mm Hg. The mixture is analysed and is found to contain 1.27 mol CO2, 3.

enot [183]

Answer:

The partial pressure of Ar is 356.04 mm Hg (= 0.4685 atm)

Explanation:

Step 1: Data given

A mixture of three gases has a total pressure of 1380 mm Hg (=1.81579 atm) at 298 K

Moles of CO2 = 1.27 moles

Moles of CO = 3.04 moles

Moles of Ar = 1.50 moles

Step 2: Calculate total number of moles

Total number of moles = n(CO2)+ n(CO)+ n(Ar) = 1.27 mol+ 3.04 mol+ 1.50 mol = 5.81 moles

Step 3: Calculate mol fraction Ar

Mol fraction Ar = 1.50 mol/5.81 mol = 0.258

Step 4: Calculate partial pressure

1380 mm Hg * 0.258 moles Ar = 356.04 mm Hg = 0.4685 atm

The partial pressure of Ar is 356.04 mm Hg (= 0.4685 atm)

8 0

3 years ago