### Understanding Saliva pH Measurement and Its ImportanceDuring your dental visit in February, your saliva's acidity is measured. The next measurement takes place in August. Your dentist informs you that your mouth is 10 times less acidic compared to the previous visit in February. Considering this information, which of the following scenarios is the most reasonable?#### Potential Scenarios:1. **February visit pH = 5; August visit pH = 6**2. **February visit pH = 3; August visit pH = 13**3. **February visit pH = 7; August visit pH = 0.7**4. **February visit pH = 7; August visit pH = 7.7**### Explanation:The pH scale measures the acidity or alkalinity of a solution, with lower values being more acidic, and higher values being more basic (alkaline). A pH change of one unit represents a tenfold change in acidity. Therefore, to determine how much less acidic the saliva is, we need to consider a tenfold increase in pH. Let's analyze each scenario based on this principle:- **February visit pH = 5; August visit pH = 6**: This change represents a tenfold decrease in acidity (from pH 5 to pH 6).- **February visit pH = 3; August visit pH = 13**: This represents an extremely large change (10 orders of magnitude), which might be unrealistic.- **February visit pH = 7; August visit pH = 0.7**: This change represents an increase in acidity, which contradicts the given information.- **February visit pH = 7; August visit pH = 7.7**: This change represents a mild decrease in acidity, not a tenfold decrease.Considering these evaluations, the most reasonable scenario is:**February visit pH = 5; August visit pH = 6.**This scenario best fits the given information about a tenfold decrease in acidity.

Given : Acidity of saliva in february = x Acidity of saliva in august = 10x Report the most…

While at the dentist in February, your saliva's acidity is measured. The next time you are there in August, it is measured again. The dentist tells you your mouth is 10x LESS acidic than the previous visit in March. Which is the most reasonable scenario? O February visit pH = 5; August visit pH = 6 %3! !! February visit pH = 3: August visit nH- 13

While at the dentist in February, your saliva's acidity is measured. The next time you are there in August, it is measured again. The dentist tells you your mouth is 10x LESS acidic than the previous visit in March. Which is the most reasonable scenario? O February visit pH = 5; August visit pH = 6 %3! !! February visit pH = 3: August visit nH- 13

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That is, fill in any missing entries in the second and third columns. Round your entries for your entries for pH to 2 decimal places. solution [H,O*] PH x10 [H,O] to: -12 A 6.3 x 10 mol/L B 0- mol/L 0.0016 mol/L C 7.27 X G to 2 significant digits, and
What is the pOH of (3.03x10^-1) M LIOH? Enter your answer in scientific notation with 3 sig figs. Do not include any units in your answer. Do not round any intermediate calculations. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer:
Order these chemical species by increasing pH of an 0.1 M aqueous solution of each. That is, imagine making an 0.1 M solution of each species. Select 1 next to the species that makes the solution with the lowest pH. Select 2 next to the species that makes the solution with the next higher pH, and so on. Notice that some of the rankings have been filled in for you already. Also notice that water is on the list. For that particular case, just compare the pH of pure water to the pH of the other solutions. Note for advanced students: for all charged species, you may assume the necessary counterions act as neither acids nor bases. species N₂ CHẠNH, CH₂CH₂COO HN₂ ОН H₂O CH₂CH₂COOH + relative pH of 0.1 M aqueous solution 6 5 (Choose one) (Choose one) 8 (highest) (Choose one) 3 X ? 00. 18 Ar
[H+] = .0001 [H+] = 0.0030 [ОН-] — 8.6 е -8 РОН 3 4.9 pH = 7.3 %3D At 37 degrees C, which of these solutions can we say is nearly neutral?
QUESTION 1 The pH of a solution is 11.41 at 25 °C. Determine the concentration of OH ions in this solution at 25 °C. (the answer should be entered with 3 significant figures; do not enter units; enter the answer in scientific notation; valid notation examples include 1.00e-8, 1.23e-8, 1.23e8, -1.10e-8, and -1.23e-4)
Which is not a general property of acids? Group of answer choices 1. reacts with active metals to produce H2(g) e.g., Mg(s)+HCl(aq)→MgCl2(aq) + H2(g) 2. reacts with a base to produce always produce NaCl and water 3. turns litmus from blue to red 4. neutralizes bases 5. All of the above are characteristic properties of acids.
If 0-2 pH is considered strongly acidic, 2-7 is weakly acidic, 7.0 is neutral, 7-12 is weakly basic and 12-14 is strongly basic. Then what is vomit with a pH of 1.3? If 0-2 pH is considered strongly acidic, 2-7 is weakly acidic, 7.0 is neutral, 7-12 is weakly basic and 12-14 is strongly basic. Then what is the milk of magnesia with a pH of 9.5?
For each of the following sets of data, identify the entity that theoretically would produce those results. pH of 1.5 Weak conductor of electricity and tastes sour Feels slippery and has a pH of 13 Tastes bitter and weakly conducts electricity HNO2 N2OH HI NH3 HCI KOH H2CO3; NaCN HI HOCI LIOH || NazCO HCI H,SO, J CH;OH NaOCI Next page
H Which of these statements are true for a neutral, aqueous solution at 25 °C? [H+] = [OH-] pH = 7.00 pOH = 7.00 Which of these statements are true for a neutral, aqueous solution regardless of temperature? Qa 6 [H] = [OH-] pOH = 7.00 pH = 7.00 S & 7 D₁ F8 * 8 F9 9 DELL prt sc F10 ) 0 home F11 end 31 F12 + insert =