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
elena55 [62]
4 years ago
7

An Erlenmeyer flask contains 25.00 mL of 0.10 M HCl. What is the pH of the solution?

Chemistry
2 answers:
Eduardwww [97]4 years ago
6 0

Answer:

The pH of the solution is 1.

Explanation:

Concentration of HCl solution = 0.10 M

HCl\rightarrow H^++Cl^-

1 mole of HCl gives 1 mole of H^+ ions.

[HCl]=[H^+]=0.10 M

The pH of the solution is defined as negative logarithm of H^+ ions in the solution.Mathematically written as

pH=-\log[H^+]

pH=-\log[0.10 M]=1

The pH of the solution is 1.

max2010maxim [7]4 years ago
4 0
C=0.10 mol/l

pH=-lg[H⁺]

HCl = H⁺ + Cl⁻

pH=-lgc

pH=-lg0.10=1.0

pH=1.0
You might be interested in
What would be the final volume of the new solution if the 0.2 m solution on the left were diluted to 0.04 m? ml quizley?
marin [14]
Missing question: volume of <span>solution on the left is 10 mL.
V</span>₁(solution) = 10 Ml.
c₁(solution) = 0.2 M.<span>
V</span>₂(solution) = ?.<span>
c</span>₂(solution) = 0.04 M.<span>
c</span>₁ - original concentration of the solution, before it gets diluted.<span>
c</span>₂ - final concentration of the solution, after dilution.<span>
V</span>₁ - <span>volume to be diluted.
V</span>₂ - <span>final volume after dilution.
c</span>₁ · V₁ = c₂ · V₂<span>.
</span>10 mL · 0.2 M = 0.04 M · V₂.
V₂(solution) = 10 mL · 0.2 M  ÷ 0.04 M.
V₂(solution) = 50 mL.<span>

</span>
3 0
3 years ago
Concentrated hydrogen peroxide solutions are explosively decomposed by traces of transition metal ions (such as Mn or Fe): 2H2O2
zalisa [80]

Answer:

23.0733 L

Explanation:

The mass of hydrogen peroxide present in 125 g of 50% of hydrogen peroxide solution:

Mass=\frac {50}{100}\times 125\ g

Mass = 62.5 g

Molar mass of H_2O_2 = 34 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus, moles are:

moles= \frac{62.5\ g}{34\ g/mol}

moles= 1.8382\ mol

Consider the given reaction as:

2H_2O_2_{(aq)}\rightarrow2H_2O_{(l)}+O_2_{(g)}

2 moles of hydrogen peroxide decomposes to give 1 mole of oxygen gas.

Also,

1 mole of hydrogen peroxide decomposes to give 1/2 mole of oxygen gas.

So,

1.8382 moles of hydrogen peroxide decomposes to give \frac {1}{2}\times 1.8382 mole of oxygen gas. Moles of oxygen gas produced = 0.9191 molGiven: Pressure = 746 torr&#10;The conversion of P(torr) to P(atm) is shown below:&#10;[tex]P(torr)=\frac {1}{760}\times P(atm)

So,

Pressure = 746 / 760 atm = 0.9816 atm

Temperature = 27 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T₁ = (27 + 273.15) K = 300.15 K

Using ideal gas equation as:

PV=nRT

where,  

P is the pressure

V is the volume

n is the number of moles

T is the temperature  

R is Gas constant having value = 0.0821 L.atm/K.mol

Applying the equation as:

0.9816 atm × V = 0.9191 mol × 0.0821 L.atm/K.mol × 300.15 K

<u>⇒V = 23.0733 L</u>

8 0
3 years ago
PLEASE HELP ME ASAP!!! <br> I need the answer to #9. If you can show work please do.
scoundrel [369]

The correct answer would be 32/16s


7 0
3 years ago
I need the answer to 452 of arogon
yaroslaw [1]
I'm confused... is there more info? 
3 0
3 years ago
I am a little confused
Sonbull [250]
The answer is D. I did that and i got it right.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Will give Brainliest to the best answer! Please help ASAP!
    13·1 answer
  • Can you tell me the simple explanation what the mol in chemistry is?
    5·1 answer
  • When 3.24 g of a nonelectrolyte solute is dissolved in water to make 955 mL of solution at 22 °C, the solution exerts an osmotic
    13·1 answer
  • A 2.567-g sample of a monoprotic acid was dissolved in water. It took 15.24 mL of a 0.1578 M NaOH solution to neutralize the aci
    8·1 answer
  • -(PLEASE HELP)-
    6·2 answers
  • In nematode worms, a gene that codes for an ATPase has two alternatives for exon 4 and three alternatives for exon 7. How many d
    14·1 answer
  • What would these molecules be labeled as? Can be (Alkane, Alkene Aromatic, Alcohol, Ester, Carboxylic acid, amine or amide) (Som
    10·1 answer
  • The molarity of a solution is 2.1m. How many mole of solute is in a 7.4 liter solution
    10·1 answer
  • Sodium chloride is dissolved in water.<br> Which ions are present in the electrolyte?
    12·2 answers
  • Most foods that are high in calcium are poor sources of iron. this statement illustrates the characteristic of a nutritious diet
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!