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
Liula [17]
4 years ago
13

Ethanedioic acid, a compound that is present in many vegetables, has a molar mass of 90.04 g/mol and a composition of 26.7% Carb

on, 2.2% Hydrogen, and 71.1% oxygen. Calculate the empirical formula and determine the compound formula.
Chemistry
1 answer:
aleksandrvk [35]4 years ago
4 0

Answer:

Empirical CHO2

Molecular C2H2O4

Explanation:

To determine the formulas, firstly, we need to divide the percentage compositions by the atomic masses.

Kindly note that the atomic mass of carbon, oxygen and hydrogen are 12, 16 and 1 respectively. We proceed with the division as follows:

C = 26.7/12 = 2.225

H = 2.2/1 = 2.2

O = 71.1/16 = 4.44375

We then proceed to divide by the smallest value which is 2.2 in this case

C = 2.25/2.2 = 1

H = 2.2/2.2 = 1

O = 4.44375/2.2 = 2

Thus, the empirical formula is CHO2

We now proceed to get the molecular formula as follows

[12+ 1 + 16(2) ]n = 90.04

45n = 90.04

n = 90.04/45 = 2

The molecular formula is :

C2H2O4

You might be interested in
I have 1.8066 x 1024 atoms of Calcium, how many grams of calcium do I have?
Vera_Pavlovna [14]

Answer: 1849.9584

Explanation:

8 0
3 years ago
PLEASE HELP FAST!! BRAINLEST AND 30 POINTS
Natasha_Volkova [10]

b - the repulsion of the protons is decreasing.

6 0
3 years ago
Which of the following states that submicroscopic particles of all matter are in constant random motion?
Gwar [14]
The best and most correct answer among the choices provided by the question is the third choice. A theory stating <span>particles of all matter are in constant random motion would be the kinetic theory. I </span><span>hope my answer has come to your help. God bless and have a nice day ahead!</span>
4 0
3 years ago
2. In the lungs, when blood enters a capillary from a vein it<br> has
antoniya [11.8K]

Answer:

This is called the pulmonary circulation. From your pulmonic valve, blood travels to the pulmonary artery to tiny capillary vessels in the lungs. Here, oxygen travels from the tiny air sacs in the lungs, through the walls of the capillaries, into the blood.

Explanation:

4 0
4 years ago
What is the maximum number of electrons that can be contained in the first, second, third, and fourth energy levels, respectivel
fenix001 [56]
<span>The maximum number of electrons that can be contained in an energy level (also called shells) is determined by the formula 2n^2, where n is the energy level; So, when n = 1, the maximum number of electrons is 2; when n = 2, the maximum number of electrons is 2*(2^2) = 8; when n = 3, the maximum number of electrons is 2 * (3^2) = 18; and when n=4, the maximum number of electrons is 2(4^2) = 32. So, briefly the series is 2, 8, 16, 32.</span>
8 0
3 years ago
Other questions:
  • Which factors would negatively impact the bodies digestive system
    6·1 answer
  • Write and balance the chemical equation that represents the reaction of aqueous sulfuric acid with aqueous sodium hydroxide to f
    9·1 answer
  • What are products of the light reactions of photosynthesis that are utilized in the calvin cycle?
    9·1 answer
  • True or False
    6·1 answer
  • What is the mass of 3.00 moles of carbon
    15·2 answers
  • Help pleassssse match allllll of them...
    11·2 answers
  • Which element in the alkali group will have the lowest first ionization energy?
    8·1 answer
  • Diazonium salts are explosively reactive intermediates for synthetic chemical reactions that must be handled with great care. Th
    13·1 answer
  • Thực trạng tồn dư nitrat trên rau và an toàn thực phẩm
    12·1 answer
  • What were the limitations of dobereiner's classification?​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!