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
yarga [219]
2 years ago
12

Calculate the pH of the 4M NaOH

Chemistry
2 answers:
kirill115 [55]2 years ago
8 0
Points pls pls pls points
krek1111 [17]2 years ago
3 0

\text{NaOH}(aq) \longrightarrow \text{Na}^{+} (aq)+ \text{OH}^{-}(aq)\\\\k_w = [\text{H}_3 \text{O}^{+}][\text{OH}^{-}]\\\\\implies 10^{-14} = [\text{H}_3 \text{O}^{+}] \cdot 4\\\\\implies   [\text{H}_3 \text{O}^{+}]  = \dfrac{10^{-14}}4 = 2.5 \times 10^{-15}~ M\\\\\text{pH} = -\log[\text{H}_3 \text{O}^{+}] = -log(2.5 \times 10^{-15})=14.603

You might be interested in
Which of the following elements has the highest 1st ionization energy of all the periodic table elements?
ddd [48]

Answer: A

Explanation:

6 0
2 years ago
Explain why copper has a high thermal conductivity.
Katarina [22]

Explanation:

So copper is a lattice of positive copper ions with free electrons moving between them. 

7 0
2 years ago
Mr Singh is cooking using wo pans of oiling water. Both pans are made of steel, but one pan has a much thicker base than the oth
Sholpan [36]

Answer:

See explanation

Explanation:

When either pan is heated, energy is transferred via conduction. Conduction is the process by which heat is transferred through a material, the average position of the particles remaining the same.

When the pans are heated, the particles in each pan vibrate faster and transfer this energy rapidly to neighboring particles.

The pan with a thicker base has more particles in it than the pan with lighter weight base. Note that, The rate of heat transfer is inversely proportional to the thickness of the material in question. Hence, the thicker the base, the more the number of particles present and the longer the time it takes for the food to cook.

6 0
3 years ago
The atomic number of fluorine is 9. How many electrons does an ion of fluorine have if it is represented by the symbol shown bel
Irina-Kira [14]
  • See charge on ion is -1 .

Hence it has taken 1 electron

Now first look at EC of Fluorine(F)

\\ \bull\sf\dashrightarrow 1s^22s^22p^5

  • Now one electron added .hence no of electrons is 10now

Look at the EC

\\ \bull\sf\dashrightarrow 1s^22s^22p^6

Or

\\ \bull\sf\dashrightarrow [He]

Option C is correct.

5 0
2 years ago
Read 2 more answers
What do you think explains why the larger elements are able to form in a supernova explosion? Use evidence from the Supernova 10
lubasha [3.4K]

Larger elements are able to form in a supernova explosion because the star releases very large amounts of energy as well as neutrons, which allows elements heavier than iron to be produced.

<h3>What is Supernova?</h3>

This is referred to the explosion of a star and it resulting in larger elements being formed through a process known as nucleosynthesis and is usually accompanied by an increase in the brightness of the star.

The elements produced are usually larger than elements such as iron and examples include uranium, gold etc.

This is therefore the reason why it was chosen as the most appropriate choice.

Read more about Supernova here brainly.com/question/27492871

#SPJ1

3 0
1 year ago
Other questions:
  • How many moles of UF6 would have to be decomposed to provide enough fluorine to prepare 8.99 mol of CF4? (Assume sufficient carb
    6·1 answer
  • Is the study of matter and energy ,and the interactions between the two through forces and motion​
    7·2 answers
  • Why is it important to separate material from mixture?
    8·1 answer
  • • When one organism eats another organism, what % of the energy from the organism consumed is actually available to the consumer
    7·1 answer
  • How is hyperglycaemia related to diabetes
    11·1 answer
  • Which element is always found in impure form naturally
    10·2 answers
  • Does the octet rule state that all elements except Hydrogen and Helium want eight (8) valence electrons?
    5·1 answer
  • How can an organism be dead and still be considered a population or a<br> community?
    9·1 answer
  • Which of the following options correctly balances the equation below? __HNO2 + __O2 --&gt; __HNO3
    5·1 answer
  • Describe what stability means in an atom and where it can be determined.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!