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
sdas [7]
3 years ago
11

6. Cuando se oxidan en el aire 12,120 g de vapor de Zinc se obtienen 15,084 g del óxido. ¿Cuál es la fórmula empírica del óxido?

Chemistry
1 answer:
Eddi Din [679]3 years ago
3 0

Answer:

 12120 g  +    O2        =    15084 g

m Zn = 12.120 Kg

m óxido = 15.084 Kg

1. calcular la masa de cinc en gramos

g = 12,120 Kg x 1000 = 12120 g de cinc

g = 15.084 Kg x 100 = 15084 g de oxígeno

2.  calcular gramos de Oxigeno

g O = 15084 g - 12120 g = 2964 g O2

3. calcular % de Zn y O

%m/m ( m soluto / m solc.) x 100

%m/m (Zn) =  ( 1210 g / 15084 g ) x 100

% m/m (Zn) = 80.35 % = 80.35 g

%m/m (O) =  ( 2964 g / 15084 g ) x 100

% m/m (Zn) = 19.65 %  = 19.65 g

4. Calcular moles de cada elemento

Zn: 80.35 g / 65.38 g/mol = 1.228 mol

O: 19.65 g / 16 g/mol = 1.228 mol

5. dividir entre el menor de los elementos

Zn: 1.228 mol / 1.228 mol = 1

O: 1.228 mol / 1.228 mol = 1

6. Fórmula empírica: ZnO

You might be interested in
The solubility of kcl in ethanol is 0.25 g / 100 ml at 25 oc. how does this compare to the solubility of kcl in water?
Furkat [3]
Solubility data of a certain solute with a certain solvent is empirical. There are constant values for this at varying temperatures. For KCl in water at 25°C, the solubility is 35.7 g/100 mL of water. When you compare this with the solubility data of KCl with ethanol, this means that KCl is more soluble in water than in ethanol. This is true because KCl is an ionic salt which is very soluble in water.
8 0
3 years ago
How many grams of H2O2 are in 3 moles of H2O2?
stira [4]

Answer:

The answer is 102.3!

Explanation:

you get this by multiplying 34.1 x 3 to get 102.3.

Wondering why you multiply 34.1 times 3?

WELLLLLLLLLLL...

when you get 1 mole of h202, you get 34.1 so if you ask for 3 moles of H202, you get 102.3!

4 0
2 years ago
How many grams of ethanol c2h5oh can be made by the fermentation of 1150 g of glucose?
ozzi
Answer is: 588.15 <span>grams of ethanol.
</span>Chemical reaction: C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂.
m(C₆H₁₂O₆) = 1150 g.
n(C₆H₁₂O₆) = m(C₆H₁₂O₆) ÷ M(C₆H₁₂O₆).
n(C₆H₁₂O₆) = 1150 g ÷ 180.16 g/mol.
n(C₆H₁₂O₆) = 6.38 mol.
From chemical reaction: n(C₆H₁₂O₆) : n(C₂H₅OH) = 1 : 2.
n(C₂H₅OH) = 12.76 mol.
m(C₂H₅OH) = 12.76 mol · 46.07 g/mol.
m(C₂H₅OH) = 588.15 g.
5 0
4 years ago
Why do some objects fall through the air at a different rate then others (this is for science)
lilavasa [31]

Answer:

the amount of air resistance depends upon the speed of the object, more massive objects fall faster than less massive objects because they are acted upon by a larger force of gravity; for this reason, they accelerate to higher speeds until the air resistance force equals the gravity force.

4 0
3 years ago
How many atoms of Hydrogen are in 67.2 L of H2 at STP?​
nekit [7.7K]

Answer:

this answer is hard cant answer

5 0
3 years ago
Other questions:
  • Given the balanced equation representing a reaction at 101.3 kPa and 298 K:
    8·1 answer
  • BRAINLIESTTT ASAP! PLEASE ANSWER IN YOUR OWN WORDS. :)
    10·1 answer
  • What are abiotic factors HELP FAST PLEASE!!!!!!!!! FIRST ONE GIVEN BRAINLIEST AND 50 POINTS
    15·2 answers
  • Would copper exist in a monatomic form, <br> a lattice or as molecules?
    9·1 answer
  • In the reaction between Li and O, there is a transfer of electrons making an ionic bond. In the bond, lithium would be a (n) bec
    10·1 answer
  • 4. What is the common name of the compound CaOCI,?​
    11·1 answer
  • WHAT IS THE CHEMICAL NAME FOR ALKYNE HAVING
    13·1 answer
  • Please!!!!!!!!!!!!!!!!!!!!!!!
    8·1 answer
  • Name the follwing compound, KBr​
    6·1 answer
  • A solution composed of 30.6g NH3 in 81.3g of H20. Calculate the mole fraction for NH3 and H20
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!