pH is the concentration of the hydrogen ion in the solution. The value of Ka for hydrogen fluoride is 2.7688.
<h3>What is pH?</h3>
pH is the potential of the hydrogen or the hydronium ion in the solution that depicts the acidic or the basic character of the solution.
Given,
pH = 2.3
Concentration of hydrogen fluoride = 0.25 M
The concentration of hydrogen ion is calculated as:
Ka is calculated as:
Therefore, 2.7688 is the Ka for hydrogen fluoride.
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Answer:
Explanation:
We start this question by assuming we have 100 g of phosphoric acid. Based on the percentages, this means 3.1 g of it is hydrogen, 31.6 g of it is phosphorus and 65.3 of it is oxygen. Now we can calculate the empirical formula
H : 3.1/1.008 = 3.075 ≈ 3
P : 31.6/30.97 = 1.020 ≈ 1
O : 65.3/15.99 = 4.08 ≈ 4
This would mean that its formula is H3PO4 which has a relative molecular mass of 3 (1.008) + 1(30.97) + 4(15.99) = 97.954. Since the empirical molecular mass is equal to the molar mass of this substance in grams, then we have found the molecular mass
Answer:
The amount of calcium carbonate will increase.
Explanation:
K is the constant of a certain reaction when it is in equilibrium, while Q is the quotient of activities of products and reactants at any stage other than equilibrium of a reaction.
- K>Q , reaction will move forward by making more product.
- K<Q , reaction will move backward by making more reactant.
Equilibrium constant of the reaction =
Concentration of
Concentration of
Concentration of
This means that equilibrium will move in backward direction by which amount of calcium carbonate will increase.
Because it has more protons than electrons. Protons are positive so if there is more of them than electrons, the ion will have a positive charge.
CH
3
CH
2
OCH
3
and CH
3
CH
2
CH
2
OH have different functional groups, hence, they are functional isomers.