The pH shows the degree of acidity of alkalinity of a solution. The pH of the HF can be obtained from the ICE table.
<h3>What is pH?</h3>
The term pH refers to the hydrogen ion concentration of a solution. Recall that acids produce hydrogen or oxonium ion in solution.
The first step to determine the pH of the HF solution is to set up the ICE table as shown;
HF + H2O ⇄ H3O^+ + F^-
I
C
E
The values of the initial concentration of HF as well as the Ka of HF are not given. If these two values are give, the pH can be obtained from;
Ka = [H3O^+] [ F^-]/[HF] Knowing that [H3O^+] = [ F^-] = x
Learn more about pH: brainly.com/question/22074421
If everyone in the population has an equal chance of inclusion in a study, then one would say that the study used a Random sampling technique for the study. (Option A.)
The way in which we select a sample of individuals to be research participants is critical. Random sampling makes sure of the population which has to be random and need not be pre determined . The procedure we plan to implement will determine if we are biased or not , if the people know each other or not etc.
To read more about Sample techniques here brainly.com/question/16813351
#SPJ4
Answer:
A the events are strictly judged to precise rules. B the games have international popularity. C the games are held every 4 years. D all the original X games events are still included today.
Explanation:
Answer:
In uniform circular motion, the speed remains constant while the direction of the object changes. This means the object experiences an acceleration toward the center of the circle, which is known as centripetal acceleration.
Explanation:
The labels are not found here but allele frequencies depend on the number of different gene variants in a given population.
<h3>What is an allele?</h3>
An allele is a given gene variant received from parents, which is found in a specific gene locus in a chromosome.
Allele frequency makes reference to the number of that a given gene variant or allele exhibits in a population or sample.
In conclusion, the labels are not found here but allele frequencies depend on the number of different gene variants in a given population.
Learn more about allele frequencies here:
brainly.com/question/22964452
#SPJ1
