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
Lina20 [59]
3 years ago
5

Help this mirrorball, please​

Chemistry
2 answers:
grin007 [14]3 years ago
5 0

Answer:

Option B

Explanation:

Avagadro's hypothesis showed that at constant temperature and pressure equal volume of all gases contains equal no of molecules.

Avagadro's constant is known as 6.022×10^23

AnnyKZ [126]3 years ago
3 0

Which of the following represents Avogadro's hypothesis?

  • <em>Equal</em><em> </em><em>volumes</em><em> </em><em>of</em><em> </em><em>all</em><em> </em><em>gases</em><em> </em><em>under</em><em> </em><em>same</em><em> </em><em>conditions</em><em> </em><em>of</em><em> </em><em>temperature</em><em> </em><em>and</em><em> </em><em>pressure</em><em> </em><em>contain</em><em> </em><em>equal</em><em> </em><em>number</em><em> </em><em>of</em><em> </em><em>molecules</em>

<u>Avogadro's</u><u> </u><u>hypothesis</u><u> </u><u>is</u><u> </u><u>an</u><u> </u><u>experimental</u><u> </u><u>gas</u><u> </u><u>law</u><u> </u><u>that</u><u> </u><u>relates</u><u> </u><u>to</u><u> </u><u>the</u><u> </u><u>volume</u><u> </u><u>of</u><u> </u><u>gas</u><u> </u><u>to</u><u> </u><u>the</u><u> </u><u>amount</u><u> </u><u>of</u><u> </u><u>gas</u><u> </u><u>present</u><u>.</u><u> </u><u>Its</u><u> </u><u>formula</u><u> </u><u>is</u><u> </u><u>:</u>

<u>\sf  \frac{V_1}{ n_{1} }  =  \frac{V_2}{ n_{2} }</u>

Where,

  • V1 is first volume
  • V2 is second volume
  • n1 is first amount of gas (in moles)
  • n2 is second amount of gas (in moles)
You might be interested in
Which of the following elements would have the greatest attraction for
stiv31 [10]

Answer:

Sr

Explanation:

because it's electronegativity is the highest.

4 0
3 years ago
A student is titrating 50 mL of 0.32 M NH3 with 0.5 M HCl. How much hydrochloric acid must be added to react completely with the
Sveta_85 [38]

Answer:

The volume of HCl to be added to completely react with the ammonia is 0.032 L or 32mL

Explanation:

Using the formula

Ca Va = Cb Vb

Cb = 0.32 M

Vb = 50 mL = 50/1000 = 0.050L

Ca = 0.5 M

Va =?

Substituting for Va in the equation, we obtain:

Va = Cb Vb / Ca

Va = 0.32 * 0.05 / 0.5

Va = 0.016 / 0.5

Va = 0.032 L

The volume of HCl to be added to completely react with the ammonia is 0.032 L or 32mL

6 0
3 years ago
The concentration of hydroxide ions is greater than the concentration of hydronium ions for acidic solutions.
Katena32 [7]

Answer:

True

Explanation:

It's true because the pH is a measure of how basic or acid a solution is. In an acidic medium, the pH scales goes from 0 to 7. While in a basic medium goes from 7 to 14. The lower the pH value of the most acid the solution is.

1. The expression pH = -log(molar concentration of hydronium) allow to calculate the pH of a solution.

2. On the other hand, the expression pOH = -log(molar concentration of hydroxide) allow to determine the pOH of a solution.

The values of pH and pOH always obey the following expression:

pH + pOH = 14

Thus if for instance the pH becomes smaller the pOH must become bigger in order to fulfill the equation. Which means that the concentration of hydronium ions is greater than the hydroxide concentration.

For example, in an acidic medium:

if pH= 3, pOH= 11

In this case the molar concentration of hydronium is 0,001M. And the molar concentration of hydroxide ions is just 0,00000000001M.

6 0
4 years ago
Read 2 more answers
How much heat is absorbed when 447 g of water , Cp = 4.184 J/goC, goes from 25.0 oC to 35.0 oC?
Digiron [165]

Answer:

The answer to your question is  Q = 18702.5 J

Explanation:

Data

mass of water = m = 447 g

Cp = 4.184 J/g°C

Temperature 1 = T1 = 25°C

Temperature 2 = T2 = 35°C

Heat = Q = ? Joules

Process

1.- Write the formula to calculate heat

    Q = mCp(T2 - T1)

2.- Substitution

    Q = (447)(4.184)(35 - 25)

3.- Simplification

    Q = (447)(4.184)(10)

4.- Result

    Q = 18702.5 J

8 0
3 years ago
Question 12 (1 point)
Vinvika [58]

Answer:

Option c. Neutral

Explanation:

Only neutral solution gives a green colouration to a pH paper

8 0
3 years ago
Read 2 more answers
Other questions:
  • In every balanced chemical equation, each side of the equation has the same number of _____.
    14·2 answers
  • Changing the number of _____ would change an atom into an atom of a different element
    8·2 answers
  • If a combustion reaction is reversed, what needs to happen to the H value?
    9·1 answer
  • What is the molarity of a potassium triiodide solution, KI3(aq), if 30.00 mL of the solution is required to completely react wit
    12·1 answer
  • Calculate the molarity of a solution that contains 200 g of copper (II) chloride( CuCl2) in 150 mL of solution.
    5·1 answer
  • Can being obese kill?
    13·2 answers
  • A bond formed when atoms share electrons is a(n) __________.
    6·1 answer
  • The forces between ________ are examples of electric forces.
    11·2 answers
  • One way to identify the type of radioactive decay produced in a reaction is to pass the emission through an electric field. Desc
    11·1 answer
  • A sample of oxygen, o2, occupies a volume of 0. 65 l at 11°c under 0. 50 atm of pressure. (r = 0. 08205 latm/molk). how many mol
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!