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
hichkok12 [17]
3 years ago
12

Determine the concentration of H+ in each solution at 25∘C

Chemistry
1 answer:
puteri [66]3 years ago
4 0

Answer:

1: [H+] = 0.01 M

2: [H+] = 0.0001 M

3: [H+] = 0.0001 M

Explanation:

Step 1: data given

pH = -log[H+]

pH = pOH = 14

Step 2:

1. A solution with pH = 2.0

pH = 2

-log[H+] = 2.0

[H+] = 10^-2

[H+] = 0.01 M

2. A solution with pH = 4.0

pH = 4

-log[H+] = 4.0

[H+] = 10^-4

[H+] = 0.0001 M

3. A solution with pOH = 10.0

pH = = 14 - 10 = 4

pH = 4

-log[H+] = 4.0

[H+] = 10^-4

[H+] = 0.0001 M

You might be interested in
How much heat (in Joules) is needed to raise the temperature of 257g of ethanol (cethanol=2.4 J/g°C) by 49.1°C?
Sonbull [250]

Answer:

Q = 30284.88 j

Explanation:

Given data:

Mass of ethanol = 257 g

Cp = 2.4 j/g.°C

Chnage in temperature = ΔT = 49.1°C

Heat required = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Now we will put the values in formula.

Q = 257 g× 2.4 j/g.°C × 49.1 °C

Q = 30284.88 j

8 0
2 years ago
How many moles of H2SO4 are needed to prepare 200 mL of a 1.0 M solution?
jok3333 [9.3K]
The answer is 0.2moles
4 0
3 years ago
The speed of Train A is 88 km/hr, and the speed of Train B is 96 km/hr. Based on this information, which of the following statem
denis-greek [22]

Answer:

C i took that test and got 96

Explanation:

7 0
2 years ago
Phosphorus will ____ electrons to complete its octet changing into an ____
Paraphin [41]
Steal; Anion
This is the answer because phosphorous is very electronegative.
3 0
2 years ago
Please help me it is easy I will reward Brainliest
Dvinal [7]

Answer:

Parallel Circuit

8 0
2 years ago
Read 2 more answers
Other questions:
  • A gaseous mixture of o2 and n2 contains 35.8 % nitrogen by mass. what is the partial pressure of oxygen in the mixture if the to
    6·1 answer
  • Hi! could you help with this (Brainlist + 50 points)
    5·1 answer
  • Using balanced chemical equations, explain the observed conductivity at the point of faint pink indicator color for:
    15·1 answer
  • Solubility is a measure of how well a solute can dissolve in a solvent at a given temperature. true or false
    11·1 answer
  • A thermometer is placed in water in order to measure the water’s temperature. What would cause the liquid in the thermometer to
    10·2 answers
  • How is the mass in grams of the element converted to amount in atoms
    11·1 answer
  • Water is being lost from earth at the rate per a year of what percentage
    7·2 answers
  • On may 10th it's gonna be my birthday and my mum don't know what to get me what do u think i would like my bio: creative,artisti
    6·1 answer
  • Sodium combines with chlorine to produce sodium chloride formula equation and balanced ​
    8·1 answer
  • Which statement best describes mechanical energy?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!