1answer.
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
GuDViN [60]
3 years ago
10

Lime is added to a lake to neutralize the effects of acid rain. The pH value of the

Chemistry
1 answer:
OverLord2011 [107]3 years ago
4 0

Answer:

The change in concentration of H+ ions is -9.99×10⁻⁵

Explanation:

When pH rises, we talk about neutralization and, there is a decline in proton's concentration.

pH lower than 7 is acid

pH higher than 7 is basic

Protons are neutralized by hydroxides to make water as this:

H₃O⁺   +  OH⁻  ⇄   H₂O

pH = - log [H₃O⁺]

[H₃O⁺] = 10^-pH

In conclussion: [H₃O⁺]₁ = 10⁻⁴ → 1×10⁻⁴

[H₃O⁺]₂ = 10⁻⁷ → 1×10⁻⁷

1×10⁻⁷- 1×10⁻⁴

The change in concentration of H+ ions is -9.99×10⁻⁵

You might be interested in
What are the main parts of the nucleus of an atom?
lesya692 [45]
The nucleus of an atom is made up of Protons and Neutrons.

Hope this answers your question :) ~
7 0
3 years ago
Read 2 more answers
Each 5-ml teaspoon of Extra Strength Maalox Plus contains 450 mg of magnesium hydroxide and 500 mg of aluminum hydroxide. How ma
Art [367]

Answer:

0.0347 moles of hydronium ions

Explanation:

The equation of the neutralization reaction between hydroxide and hydronium ions is given below:

H₃O+ (aq) + OH- (aq) ----> 2 H₂O (l)

From the equation above, 1 mole of hydroxide ions will neutralize one mole hydronium ions.

The moles of hydroxide ions present in 1 teaspoon or 5 mL of antacid product is calculated as follows:

Number of moles = mass / molar mass

Molar mass of Magnesium hydroxide, Mg(OH)₂ = 58 g/mol

Molar mass of aluminium hydroxide, Al(OH)₃ = 78 g/mol

Mass of magnesium hydroxide = 450 g = 0.45 g

Mass of aluminium hydroxide = 500 mg = 0.5 g

Moles of magnesium hydroxide = (0.45/58) moles

Moles of aluminium hydroxide = (0.5/78) moles

Equation of the ionization of magnesium hydroxide and aluminium hydroxide is given below:

Mg(OH)₂ (aq) ----> Mg²+ (aq) + 2 OH- (aq)

Al(OH)₃ (aq) ---> Al³+ (aq) + 3 OH- (aq)

Number of moles of hydroxide ions present in (0.45/58) moles of magnesium hydroxide = 2 × (0.45/58) moles = 0.0155 moles

Number of moles of hydroxide ions present in (0.5/78) moles of aluminium hydroxide = 3 × (0.5/78) moles = 0.0192 moles

Total moles of hydroxide ions = 0.0155 + 0.0192 = 0.0347 moles hydroxide ions

Therefore, 0.0347 moles of hydroxide ions will neutralize 0.0347 moles of hydronium ions.

3 0
3 years ago
The greater the resistance, the less current there is for a given voltage. True or False
mart [117]
True the answer is true
7 0
3 years ago
Read 2 more answers
Calculate the pH of the following <br> A.0.02mol/L HCI<br>B. 0.1 mol/L NaOH​
9966 [12]
GIMME POINTSSSSSSSSSSSSSSSS
5 0
3 years ago
Read 2 more answers
Separation of light into different wavelengths
TiliK225 [7]

Answer:

I'm sure it's Dispersion

Explanation:

4 0
2 years ago
Other questions:
  • What is the total number of molecules in 34.0?
    7·1 answer
  • If any more mix is added, it will not dissolve. the solution is
    12·1 answer
  • A 100 W light bulb is placed in a cylinder equipped with a moveable piston. The light bulb is turned on for 2.0×10−2 hour, and t
    8·1 answer
  • Number 41? Need help how do you get answrb
    10·1 answer
  • Lactose is a disaccharide (two monosaccharides joined together). to metabolize lactose, individuals require an enzyme known as l
    13·1 answer
  • what is the velocity of a car traveling from the east coast to the west coast at an average speed of 5omph
    7·2 answers
  • The density of helium is 0.17 g/L. What Is the mass of helium in a 5.4 L helium balloon? (2 sig figs) *
    11·1 answer
  • Cathodic protection of iron involves using another more reactive metal as a sacrificial anode. Classify each of the following me
    14·1 answer
  • Name a mammal that lives in the ocean
    5·2 answers
  • Pleaseeeeeeeeeeee help this is due today
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!