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
Digiron [165]
3 years ago
5

Calculate the percentage by mass of the indicated element in the following compounds. Hydrogen in ascorbic acid, HC6H7O6, also k

nown as vitamin C. Express your answer using two significant figures
Chemistry
1 answer:
Scorpion4ik [409]3 years ago
8 0

Answer: The mass percent of hydrogen in ascorbic acid is 4.5 %

Explanation:

In C_6H_8O_6, there are 6 carbon atoms, 8 hydrogen atoms and 6 oxygen atoms.

To calculate the mass percent of element in a given compound, we use the formula:

\text{Mass percent of hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Molar mass of ascorbic acid}}\times 100

Mass of hydrogen = 8\times 1g/mol=8g

Molar Mass of ascorbic acid =6\times 12g/mol+8\times 1g/mol+6\times 16g/mol=176g

Putting values in above equation, we get:

\text{Mass percent of hydrogen}=\frac{8g}{176}\times 100=4.5\%

Hence, the mass percent of of hydrogen in ascorbic acid is 4.5 %.

You might be interested in
A displacement reaction takes place when calcium is placed in a solution of zinc chloride. Which substances will most likely be
Karolina [17]

Hi!


The correct option would be A.


This is because the displacement reaction would take place as follows

Ca + ZnCl2 --> CaCl2 + Zn


A displacement reaction is one in which a substitution occurs, as the more reactive element in the mixture replaces one that is less reactive.

In the electrochemical series, we find Ca higher than Zn, which is indicative of Ca being more reactive, and having the capacity to displace Zn to form a compound.


Option D would be incorrect as no such substitution occurs.

Option B would be incorrect because again, there is no substitution occurring, and also because two metals alone (Ca and Zn in our case) can never react to form a compound.

Option C would be incorrect because it is not possible because CaCl and ZnCl are forms that are too unstable to exist due to an overall positive charge.


Hope this helps!

5 0
3 years ago
The process of splitting and Atom into two lighters atoms is called?
natima [27]
<span>The process of splitting and Atom into two lighters atoms is called </span>Nuclear Fission
5 0
3 years ago
Elements that are arranged in the same column on the periodic table belong to the same family of elements. the atoms of elements
Vlad [161]
The answer is: c. electrons
4 0
3 years ago
Please answer fast, I will give brainliest if correct!
gizmo_the_mogwai [7]

Answer:

Explanation: 30 min

5 0
2 years ago
How many degrees of unsaturation are lost or gained in the base-induced transformation from mito-ph to its photoactive ring-open
Fudgin [204]

Unsaturation (IHD) 2 hydrogen Needed

IHD = [(2n+2) -H]/2
(H: X=1, N=-1, O= zero)

Unsaturation:
Double bonds = 1
Rings = 1
Triple Bonds = 2

The degrees of unsaturation in a molecule are additive — a molecule with one double bond has one degree of unsaturation, a molecule with two double bonds has two degrees of unsaturation, and so forth.



6 0
3 years ago
Other questions:
  • Imagine two solutions with the same concentration and the same boiling point, but one has benzene as the solvent and the other h
    7·1 answer
  • What organelle of a prokaryotic cell contains genetic information?
    11·1 answer
  • During the analysis, 0.00905 mol H2O is formed. Calculate the amount (mol) H in 0.00905 mol H2O.
    11·1 answer
  • In a hemoglobin molecule, what element is central to all the structures
    7·1 answer
  • Which of the following statements is/are correct?
    10·1 answer
  • The hypochlorite ion (OCl-) is a strong oxidizing agent often found in household bleaches and disinfectants. It is also the acti
    8·1 answer
  • Beth has two unlabeled balloons, one filled with hydrogen gas and the second filled with neon gas. She researches and writes dow
    9·1 answer
  • What happens when the south end of Earth’s axis is tilted toward the Sun?
    11·2 answers
  • The following molecular scenes depict an important reaction in nitrogen chemistry (nitrogen is blue; oxygen is red): Write a bal
    6·1 answer
  • Which type of reaction is <br> NaOH + KNO3 NaNO3 + KOH<br> --&gt;&gt;
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!