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
Hatshy [7]
3 years ago
7

A 40.0-mL sample of 0.100 M HNO2 (Ka = 4.6 x 10-4 .) is titrated with 0.200 M KOH. Calculate: a. the pH when no base is added b.

the volume of KOH required to reach the equivalence point. c. the pH after adding 5.00 mL of KOH d .the pH at one-half the equivalence point e. the pH at the equivalence point f. the pH after 30 mL of the base is added

Chemistry
1 answer:
In-s [12.5K]3 years ago
4 0

Answer:

a) 2.173

b) 20ml

c) 3.87

d) 4.35

e) 8.8

f) 12.45

Explanation:

chech the attachment for explanationns

You might be interested in
Substances A and B are combined. When combined, substance A, which is a black solid, sinks to the bottom of substance B which is
Makovka662 [10]

Answer:

c thats just what i do

Explanation:

4 0
3 years ago
Read 2 more answers
What else can I do to shrink my nose besides surgery?​
kotegsom [21]
You can push the tip of your nose up and it will make it smaller for a small amount of time.
8 0
3 years ago
One of the product chemicals is aluminum chloride, which is an eye and skin irritant that can cause chemical burns. What will pr
vagabundo [1.1K]

Explanation:

Since, aluminium chloride is an eye and skin irritant. Therefore, it is better to follow safety measures while dealing with such a chemical.

Hence, it is good to wear a lab coat while working in a laboratory and wear chemical resistant gloves so that our skin does not come in contact with the chemical.

Also, safety glasses will prevent the eyes if there is spurting of chemical.

Thus, we can conclude that chemical-resistant gloves, a lab coat, and safety glasses will prevent you from coming into contact with the given hazard.

5 0
3 years ago
Read 2 more answers
What are the roles of fungi? Check all that apply.
dmitriy555 [2]

Answer:

Fungi are a food source for animals and humans. This point do not apply on fungi.

Explanation:

Roles of fungi:

Penicillin and Cephalosporins are the antibiotics made by fungi. They are natural sources of antibiotics.

Fungi are eaten by animals  examples are mushroom, agaricus and some animals even eat poisonous mushrooms.

Fungi destroy by releasing chemicals into the rock and they get iron this way and then deeply burrow the rocks and harming them.

Fungi acts as a decomposer to nourish the soil and improves vegetation.

Many infections are caused by fungus like ringworm infection, candida and Athlete's food are some examples.

4 0
3 years ago
How does the final paragraph relate to the main idea of the article? (4.03) science.
V125BC [204]

Answer:

Indicates the writer's stance on the main idea of a paragraph. The controlling idea appears in the paragraph's topic sentence. ... The final sentence of a paragraph that summarizes the topic sentence using different words. Words and phrases that show how the ideas in sentences and paragraphs are related.

Explanation:

HOPE THIS HELP

PICK ME AS THE BRAINLIEST

5 0
3 years ago
Other questions:
  • The conductors in electrical devices are commonly made of<br> a. iron.,B.nickel.,C.Cooper.,D.lead.
    14·2 answers
  • Are there other universes?
    14·1 answer
  • Write the balanced equation and solve the stoichiometry problem: The number of moles and mass of copper(II) carbonate needed to
    12·1 answer
  • A type of fracture in which a mineral splits evenly is called_______
    6·1 answer
  • __?__ is when cells divide. *
    13·2 answers
  • Which of the following particle diagrams represents a mixture?
    8·1 answer
  • _____________________________________ this is another name for a solution where substances are evenly distributed
    15·1 answer
  • The boiling point of a pure substance is defined as the temperature at which
    14·1 answer
  • Provide a balanced molecular equation, total ionic, and net ionic equation for sodium phosphate and zinc acetate.
    15·1 answer
  • Que tipos de conocimientos científicos y no científicos conoces?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!