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Elan Coil [88]
3 years ago
14

The Weak Ionization constant (Ka) for HCOOH is equal to: Please help me lol

Chemistry
2 answers:
iris [78.8K]3 years ago
8 0

Answer:

Ka=\frac{[H^+][HCOO^-]}{[HCOOH]}

Explanation:

Hello,

In this case, the weak ionization reaction for formic acid is:

HCOOH(aq)\rightleftharpoons H^+(aq)+HCOO^-(aq)

In such a way, we simply recall the law of mass action in order to represent the weak ionization constant, Ka, for such process, by taking into account that the concentration of products is divided over the concentration of reactants as shown below:

Ka=\frac{[H^+][HCOO^-]}{[HCOOH]}

Best regards.

Troyanec [42]3 years ago
7 0

Answer:

Ka=\frac{[CH_3COO^-][H^+]}{[CH_3COOH]}

Explanation:

In this case we have to start with the <u>ionization reaction</u> of CH_3COOH, so:

CH_3COOH~~CH_3COO^-~+~H^+

With this in mind we can calculate the <u>mathematical expression of Ka</u> (The production of hydronium ions H^+), so:

Ka=\frac{[CH_3COO^-][H^+]}{[CH_3COOH]}

I hope it helps!

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Answer: pH of an H_2SO_4 solution is 4.34

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

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Putting in the values:

pH=-\log[4.58\times 10^{-5}]

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2 years ago
What is the molar concentration of a 2 liter solution containing 200 grams of glucose?
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The molar concentration is 1.11M.

<h3>What is molar concentration?</h3>

The phrase "molar concentration" (also known as "molarity," "amount concentration," or "substance concentration") refers to the amount of a substance per unit volume of solution and is used to describe the concentration of a chemical species, specifically a solute, in a solution. The most frequent measure of molarity in chemistry is the number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units. A solution with a concentration of 1 mol/L is referred to as 1 molar, or 1 M.

<h3>Given : </h3>

Volume of the solution = 2L

Mass of glucose given = 200g

Concentration of glucose= ?

<h3>Formula use: </h3>

Molarity = no. of moles of solute / volume of the solution (L)

Moles of solute = given mass of solute / molar mass of the solute

<h3>Solution: </h3>

No. of moles of solute( glucose ) = 200 / 180 = 1.11 moles'

Molarity = 1.11 / 2 = 0.5555 mol L ^(-1)

Therefore, the molar concentration of glucose in the solution = 0.555 mol L ^(-1)

To learn more about molar concentration :

brainly.com/question/15532279

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