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
AnnyKZ [126]
3 years ago
8

Which is the empirical formula for a compound that contains 64.75g nitrogen and 185.25 oxygen

Chemistry
1 answer:
Svetach [21]3 years ago
5 0

Answer:

What is the formula for a compound that contains 64.75 g nitrogen and 185.25 g oxygen? D. N2O5

The name of a hydrate is calcium chloride dihydrate. What is its formula? B. CaCl2 x 2H20

Explanation:

BRAINLIEST PLZZZZ

You might be interested in
What is the correct name for ionic compound Cs2S?
Leno4ka [110]
The name for the ionic compound Cs2S is Cesium sulfide.
7 0
3 years ago
Calculate the pH of a solution prepared by mixing: (Show your work for these calculations) pk of acetic acid is 4.75 a. two mole
kupik [55]

Answer:

Explanation:

To calculate pH you need to use Henderson-Hasselbalch formula:

pH = pka + log₁₀ \frac{[A^-]}{[HA]}

Where HA is the acid concentration and A⁻ is the conjugate base concentration.

The equilibrium of acetic acid is:

CH₃COOH ⇄ CH₃COO⁻ + H⁺ pka: 4,75

Where <em>CH₃COOH </em>is the acid and <em>CH₃COO⁻ </em>is the conjugate base.

Thus, Henderson-Hasselbalch formula for acetic acid equilibrium is:

pH = 4,75 + log₁₀ \frac{[CH_{3}COO^-]}{[CH_{3}COOH]}

a) The pH is:

pH = 4,75 + log₁₀ \frac{[2 mol]}{[2 mol]}

<em>pH = 4,75</em>

<em></em>

b) The pH is:

pH = 4,75 + log₁₀ \frac{[2 mol]}{[1mol]}

<em>pH = 5,05</em>

<em></em>

I hope it helps!

7 0
3 years ago
What will happen if atom hit earth with speed of light?​
xz_007 [3.2K]

Answer:

Every object that travel at the speed of light gains infinite mass. Is a law in physics that as it gains speed, it is gaining mass. Then, not is necesary that a meteorite hit the Earth at the speed of light, because just an atom traveling a this velocities could destroy our planet.

Explanation:

The speed of light is really fast so that will mostly happen

4 0
3 years ago
Read 2 more answers
Potassium and silver replace each other in the following reaction: AgNO3 + KCl → KNO3 + AgCl. What type of reaction does this re
Sphinxa [80]

Notice how the K and Ag are both being swapped around.

Single Replacement:

A+BX → B+AX

Double Replacement:

AX+BY → BX + AY

7 0
3 years ago
Henok is observing the reaction rate of a chemical reaction. He then adds a catalyst to the reaction.
tia_tia [17]
A catalyst will ALWAYS increase the reaction rate so C
4 0
3 years ago
Other questions:
  • Can someone please do this for me
    14·1 answer
  • How do you perform calculations relating to isotopes. describe please
    7·1 answer
  • All of the halogens __________. a. exhibit metallic character b. form salts with alkali metals with the formula mx c. exist unde
    15·1 answer
  • An unknown compound has the empirical formula CH2O and a molecular mass of 180 amu. What is the molecular formula of the compoun
    13·1 answer
  • How is chemical balanced maintained?
    5·2 answers
  • What are all resonance structures for SO3?
    13·1 answer
  • H2O
    5·2 answers
  • What is solubility?
    7·2 answers
  • ____causes movement of an object,whereas____is the work done ✔️ on an object in given amount of time
    12·2 answers
  • A-potassium<br>B-lead<br>C-iron<br>D-magnesium<br>E-zinc<br>​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!