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
Nataliya [291]
3 years ago
8

The pH of a vinegar solution is 4.15. What is the H3O+ concentration of the solution?

Chemistry
2 answers:
riadik2000 [5.3K]3 years ago
8 0
PH = -log [H3O+]
4.15 = -log [H3O+]
[H3O+] = 10^(-4.15)
[H3O+]= 7.08 × 10^-5
Lera25 [3.4K]3 years ago
4 0
The Concentration can be calculated as 
 pH = -log [H3O+]
4.15= -log [H3O+]
[H3O+] = 10^(-4.15)
[H3O+]= 7.08 × 10^-5
You might be interested in
Consider the following chemical reaction:
jolli1 [7]

From the calculation, the moles of water produced is 18 moles of water.

<h3>What is a decomposition reaction?</h3>

A decomposition reaction is one in which a substance is split up into smaller parts.

We have the reaction; 2 Cr(OH)3(aq) ------------> Cr2O3(s) + 3H2O(l)

From this reaction;

2 moles of  Cr(OH)3 produced 3 moles of water

12 moles of  Cr(OH)3 will produce;

12 moles  *  3 moles / 2moles

= 18 moles of water

Hence, 12 moles of chromium (III) hydroxide produces 18 moles of water.

Learn more about decomposition reaction:brainly.com/question/8009068?

#SPJ1

4 0
2 years ago
If you have 6.25g of O2, how many moles of H2O are produced?
denis23 [38]

Answer:

0.4 moles of water produced by 6.25 g of oxygen.

Explanation:

Given data:

Mass of oxygen = 6.25 g

Moles of water produced = ?

Solution:

Chemical equation;

2H₂ + O₂  → 2H₂O

Number of moles of oxygen:

Number of moles = mass/ molar mass

Number of moles = 6.35 g/ 32 g/mol

Number of moles = 0.2 mol

Now we will compare the moles of oxygen with water:

                    O₂          :          H₂O

                     1            :            2

                   0.2          :        2×0.2 = 0.4 mol

0.4 moles of water produced by 6.25 g of oxygen.

8 0
3 years ago
Upon heating a copper sample will expand, leading to a lower density? <br><br>A) True<br>B) False
Leona [35]

Answer;

The above statement is true

upon heating a copper sample will expand, leading to a lower density

Explanation;

-The density of solids decreased with increase in temperature and vice versa. The increase in temperature causes the volume of the solid to increase which as a result decreases the density as Density=Mass/Volume. The temperature of a body is the average kinetic energy of the molecules present in it.

In other words; The temperature of a body is the average kinetic energy of the molecules present in it. Therefore; when heat is supplied ( or temperature is increased) the average kinetic energy increases which increases the volume and thus density decreases.

8 0
3 years ago
_______ in the mountains melts into water.<br>​
Zigmanuir [339]

Answer:

Ice

Explanation:

When ice melts it makes water

8 0
3 years ago
Which one is right for brainliest
SVEN [57.7K]
I believe it is the second option
6 0
3 years ago
Read 2 more answers
Other questions:
  • How much of the rock cycle can be observed directly? How much must be inferred? Think about both how long things take to happen
    9·1 answer
  • Describe what happens to water particles when ice melts
    6·1 answer
  • Can someone give a decent explanation to why the answer is N-2?
    15·1 answer
  • Consider a mixture of two gases A and B, confined to a closed vessel. A quantity of a third gas, C, is added to the same vessel
    12·1 answer
  • If you had a total sample of 35 candium- 15 M&amp;Mium, 12 Skittlitium and 8 MPeanuttium. What is the relative abundance for eac
    10·1 answer
  • In a phospholipid the phosphate head is? and the acid tail is
    15·1 answer
  • Where is the sun shining most directly when we are having winter in the Northern Hemisphere?
    14·1 answer
  • What drives spontaneous reactions?
    6·2 answers
  • A gas has a volume of 350 ml at 45oC. If the volume changes to 400. ml, what is the new temperature in oC
    11·2 answers
  • In order to break water into hydrogen and oxygen, water is heated to more than 500°C. Which kind of reaction is this and
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!