answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Maurinko [17]
2 years ago
9

If the ph of a solution is decreased from ph 8 to ph 6 it means that the

Chemistry
2 answers:
dimaraw [331]2 years ago
8 0

If the pH of a solution is decreased from pH 8 to pH 6 it means that the concentration of hydrogen ions in the solution has been increased while the concentration of OH ions have been decreased.

<h2>Further Explanation: </h2><h3>pH and pOH </h3>
  • pH and pOH measures the acidity or alkalinity of a substance.
  • pH is the measure hydrogen ion concentration in a substance while pOH measures the concentration of hydroxyl ions.
<h3>Acids and bases </h3><h3>Acids </h3>
  • Acids are substances that react with bases to form salt and water as the only products.
  • Acids have a pH less than 7, with strong acids having a pH range of 1-3 while weak acids have a pH range of 4-6.
  • The pOH of acids on the other hand is greater than 7.
<h3>Bases</h3>
  • Bases are substances that react with acids to form salt and water as the only product.
  • Bases have a pH greater than 7, with strong bases having a pH range of 12-14 and weak bases having a pH range of 8-11.
  • Bases have a pOH less than 7.
<h3>Calculation of pH and pOH </h3>
  • pH is calculated as the negative logarithm of hydrogen ion concentration.

That is;

pH = -Log [H+]

  • pOH on the other hand is calculated as the negative logarithm of hydroxyl ion concentration.

That is;

pOH =-Log[OH-]

Additionally;

pH + pOH = 14

Keywords: Acids, bases, pH, pOH

<h3>Learn more about:</h3>
  • pH :brainly.com/question/10951922
  • pOH : brainly.com/question/10951922
  • Example of a question on pH: brainly.com/question/10951922
  • Example of a question on pOH: brainly.com/question/10951922

Level; High school

Subject: Chemistry

Topic: Acids and bases

Sub-topic; pH and pOH

saw5 [17]2 years ago
5 0

Explanation:

Relation between pH and concentration of hydrogen ions is as follows.

                  pH = -log [H^{+}]

So, it means that an increase in the value of pH will show that there occurs a decrease in concentration of hydrogen ions.

Therefore, the solution becomes basic in nature.

On the other hand, a decrease in the value of pH will show that there occurs an increase in the concentration of hydrogen ions.

Therefore, the solution becomes more acidic in nature.

Hence, if the pH of a solution is decreased from pH 8 to pH 6 it means that the concentration of hydrogen ions has increased in the solution.

You might be interested in
what does the number of the places after the decimal in a measurement tell you about the precision of the instrument that record
snow_lady [41]
The more numbers after the decimal point there are, the more precise the instrument which recorded it is. For example, if one instrument during seismic activity records that the magnitude of the earthquake was 2.3, and another instrument recorded that it was 2.3645, the second instrument would have shown to be more precise.
3 0
1 year ago
What is the ph of a solution that consists of 0.50 m h2c6h6o6 (ascorbic acid) and 0.75 m nahc6h6o6 (sodium ascorbate)? ka = 6.8
bearhunter [10]

Answer:

4.34.

Explanation:

  • For acidic buffer:

<em>∵ pH = pKa + log [salt]/[Acid]</em>

∴ pH = - log(Ka) + log [salt]/[Acid]

∴ pH = - log(6.8 x 10⁻⁵) + log(0.75)/(0.50)

<em>∴ pH = 4.167 + 0.176 = 4.343 ≅ 4.34.</em>

<em></em>

4 0
2 years ago
A solution contains 90 milliequivalents of HC1 in 450ml. What is its normality?
Rashid [163]

Answer:

Normality N = 0.2 N

Explanation:

Normality is the number of gram of equivalent of solute divided of volume of solution, where the number of gram of equivalent of solute is weight of the solute divided by the equivalent weight.

Normality is represented by N.

Mathematically, we have :

\mathbf{Normality \ N = \dfrac{Number \ of \ gram \of \ equivalent\  of\  solute }{volume \ of \ solution}}

Given that:

number of gram of equivalent of solute = 90 milliequivalents 90 × 10⁻³ equivalent

volume of solution (HCl) = 450 mL 450 × 10⁻³ L

\mathbf{Normality \ N = \dfrac{90 \times 10^{-3}}{450 \times 10^{-3}}}

Normality N = 0.2 N

7 0
2 years ago
The average distance between nitrogen and oxygen atoms is 115 pm in a compound called nitric oxide. What is this distance in mil
jasenka [17]

Answer:

C) 1.15 × 10⁻⁷ mm

Explanation:

Step 1: Given data

Average distance between nitrogen and oxygen atoms: 115 pm

Step 2: Convert the distance to meters (SI base unit)

We will use the conversion factor 1 m = 10¹² pm.

115 pm × (1 m/10¹² pm) = 1.15 × 10⁻¹⁰ m

Step 3: Convert the distance to millimeters

We will use the conversion factor 1 m = 10³ mm.

1.15 × 10⁻¹⁰ m × (10³ mm/1 m) = 1.15 × 10⁻⁷ mm

5 0
1 year ago
What is the best example of a cyclic event?
BARSIC [14]

Answer:

3

Explanation:

A cyclic event is one that happens repeatedly.

The appearance of Hailey's Comet is a cyclic event because it has happened in various occasions in the past on a regular schedule as predicted. We have every reason to believe that the appearance of Hailey's Comet every 75 years will continue to be happen until the comet ceases to exist.

5 0
2 years ago
Other questions:
  • 11 Which compound has the greatest percent composition by mass of sulfur?(1) BaS (3) MgS
    8·2 answers
  • Write a balanced equation for the reaction of NaCH3COO (also written as NaC2H3O2) and HCl.
    10·2 answers
  • The lab question is “Based on a substance’s properties, how can you determine whether its bonds are ionic or covalent?” Fill in
    9·2 answers
  • analysis of a compound indicates that it contains 1.04 grams K 0.70 g Cr and 0.86 g O. Find its empirical formula
    7·2 answers
  • Draw the structures of the starting materials used to synthesize 3-methylbutyl propanoate. (draw the structures in the single sk
    5·1 answer
  • What will happen to a test dummy during a crash test if its seatbelt is not buckled? The test dummy will stop when the car stops
    10·2 answers
  • An atom has a diameter of approximately 0.0010 um. How many meters is this?
    10·1 answer
  • Which of the following reactions is the least energetic? Question 18 options: ATP + H2O → ADP + Pi ATP + H2O → AMP + PPi AMP + H
    6·1 answer
  • The model below shows an atom of an element. 10 light gray and 8 dark gray balls sit at the center with 2 concentric black rings
    16·2 answers
  • Rust results from iron’s reaction to oxygen. An iron nail gains mass when it rusts. How does this reaction support the law of co
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!