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
xeze [42]
3 years ago
14

What is the total mass of oxygen contained in 8.20g of benzoic acid (C6H5COOH)

Chemistry
1 answer:
VashaNatasha [74]3 years ago
4 0

Answer:

Mass of oxygen = 2.2 g

Explanation:

Given data:

Mass of benzoic acid= 8.20 g

Mass of oxygen= ?

Solution:

Molar mass of oxygen = 16×2 g/mol

Molar mass of C₆H₅COOH = 7×12 + 1×6 + 2×16

Molar mass of C₆H₅COOH = 84 + 6 + 32

Molar mass of C₆H₅COOH = 122g/mol

Mass of oxygen in 8.20 g of C₆H₅COOH :

Mass of oxygen = 32 g.mol⁻¹/122 g.mol⁻¹ × 8.20 g

Mass of oxygen = 2.2g

You might be interested in
In a chemical process, three bottles of a standard fluid are emptied into a larger container. A study of the individual bottles
Setler79 [48]

Answer:

a

The expected value is = 39 units

The standard deviation is = 0.1212 unites

b

The probability is = 0.2047 units

Explanation:

The explanation of this answer is shown on the first uploaded image

5 0
3 years ago
How many liters of oxygen are required to react completely with 14.8 mol of Al?
Bond [772]

Answer:

296 L  

Explanation:

We will need a balanced equation with moles, so let's gather all the information in one place.

                  4Al + 3O₂ ⟶ 2Al₂O₃

n/mol:        17.4

1. Moles of O₂

n = \text{17.4 mol Al}\times \dfrac{\text{3 mol O}_{2}}{\text{4 mol Al}}= \text{13.05 mol O}_{2}

2. Volume of O₂

You haven't given the conditions at which the volume is measured, so I assume it is at STP (0 °C and 1 bar).

At STP the molar volume of a gas is 22.71 L.

V = \text{13.05 mol}\times \dfrac{\text{22.71 L}}{\text{1 mol }}= \textbf{296 L}

8 0
3 years ago
If a liquid substance is transferred to a different container, what can be predicted about the volume of the liquid in the new c
taurus [48]

The same

Explanation:

If a liquid substance is transferred to a different container, the volume of the liquid in the new container will remain the same.

The volumes of liquids are fixed and does not change. Wherever they are contained, just like solids, they maintain their constant space.

  • Volume is the amount of space occupied by a body.
  • Gases do not have fixed volume as they fill their containers and they take up the shape.
  • Solids and liquids have a fixed volume.
  • They do not change their volume.

learn more:

State of matter brainly.com/question/10972073

#learnwithBrainly

8 0
3 years ago
What is the definition of Axis of rotation
il63 [147K]

Answer: an invisible line around which an object rotates, or spins.

Explanation: //Give thanks(and or Brainliest) if helpful (≧▽≦)//

6 0
3 years ago
HELP I'LL GIVE YOU 15 POINTS CAUSE THAT'S ALL I'VE GOT, BUT I NEED IT PLEASE!
nekit [7.7K]

All mixtures contain only one kind of atom.

~Mschmindy

4 0
3 years ago
Other questions:
  • 1/2-life of pyruvic acid in the presence of aminotransferase enzyme (which converts it to alanine) was found to be 221 s. how lo
    14·1 answer
  • Being initially at 300k and 200 kpa, air is subsequently heated, isobarically, to 700k. please determine the change in the speci
    13·1 answer
  • Shiloh wanted to observe the changes that occurred during an exothermic reaction. He monitored the changes and placed them in a
    12·1 answer
  • Why don’t people eat things with very high levels of cellulose?
    8·1 answer
  • What is the correct name for the compound CoCl3?
    11·2 answers
  • What is activation energy?
    10·1 answer
  • An aqueous salt solution is 15.0% mass sodium chloride. How many grams of salt are in 250.0 grams of this solution? Use correct
    13·1 answer
  • The transfer of valence electrons causes oppositely charged ions to Response area each other.
    15·1 answer
  • Pls help me answer this!
    6·1 answer
  • The stimulus is related to?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!