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
NeTakaya
3 years ago
11

Tính [H] và [OH] của dung dịch HC1 0,1M? Tính pH của dung dịch?

Chemistry
1 answer:
Brrunno [24]3 years ago
3 0

Answer:

po jakiemu to jest XD

Explanation:

po jakiemu to jest XD

You might be interested in
Please help due today!
TEA [102]

for the first one it is B OR THE SECOND OPTION

8 0
2 years ago
______ contributes to the nitrogen cycle by removing nitrogen from the air and converting it into a form that is usable by plant
umka21 [38]

Answer: Bacteria✅

Explanation:

4 0
2 years ago
Calculate the percentage composition of oxygen in aluminium nitrate, Al(NO3)3.
kotegsom [21]

Answer:

A small still is separating propane and butane at 135 °C, and initially contains 10 kg moles of a mixture whose composition is x = 0.3 (x = mole fraction butane). Additional mixture (x = 0.3) is fed at the rate of 5 kg mole/hr. The total volume of the liquid in the still is constant, and the concentration of the vapor from the still (xp) is related to x, as follows: Xp = How long will it take for X, to change from 0.3 to 0.35.

7 0
3 years ago
A chemist dissolves of pure potassium hydroxide in enough water to make up of solution. Calculate the pH of the solution. (The t
Leya [2.2K]

Answer:

12.99

Explanation:

<em>A chemist dissolves 716. mg of pure potassium hydroxide in enough water to make up 130. mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.) Be sure your answer has the correct number of significant digits.</em>

Step 1: Given data

  • Mass of KOH: 716. mg (0.716 g)
  • Volume of the solution: 130. mL (0.130 L)

Step 2: Calculate the moles corresponding to 0.716 g of KOH

The molar mass of KOH is 56.11 g/mol.

0.716 g × 1 mol/56.11 g = 0.0128 mol

Step 3: Calculate the molar concentration of KOH

[KOH] = 0.0128 mol/0.130 L = 0.0985 M

Step 4: Write the ionization reaction of KOH

KOH(aq) ⇒ K⁺(aq) + OH⁻(aq)

The molar ratio of KOH to OH⁻is 1:1. Then, [OH⁻] = 0.0985 M

Step 5: Calculate the pOH

We will use the following expression.

pOH = -log [OH⁻] = -log 0.0985 = 1.01

Step 6: Calculate the pH

We will use the following expression.

pH + pOH = 14

pH = 14 - pOH = 14 -1.01 = 12.99

8 0
2 years ago
Which is the larger atom kr Or As
nasty-shy [4]

Answer:

I think As is larger

Explanation:

5 0
2 years ago
Other questions:
  • Which of the following is a chemical property?
    12·2 answers
  • What characteristic is descriptive of a solution?
    9·1 answer
  • If you weighed the atoms that appear on the reactant side of the equation, would they have the same mass as the atoms that appea
    8·1 answer
  • Describe the factors that affect surface and deep water currents
    9·1 answer
  • How can u use invade in a sentence using science terms?
    15·1 answer
  • \ce{Zn + CuCl2 -&gt; ZnCl2 + Cu}Zn+CuCl2 ​ ​ ZnCl2 ​ +Cu
    11·1 answer
  • Which conditions suggest that a bond will be ionic
    9·2 answers
  • How do I determine the value for the smallest increment on each cylinder
    15·1 answer
  • There are 1 1/2 times the amount of<br> we need on the planet today
    13·1 answer
  • Point give away number 5!
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!